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  <xsd:element name="MineralResourceMinimumVolume" id="nucl_MineralResourceMinimumVolume" type="dtr-types:massItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="MineralRightsSharesTransferredIncreaseInValue" id="nucl_MineralRightsSharesTransferredIncreaseInValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="MineralResourceAdditionalVolume" id="nucl_MineralResourceAdditionalVolume" type="dtr-types:massItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="PercentageOfIncreaseInSpotPrice" id="nucl_PercentageOfIncreaseInSpotPrice" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="MineralRightsAgreementExtensionTerm" id="nucl_MineralRightsAgreementExtensionTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="MineralRightsAgreementNumberOfExtensions" id="nucl_MineralRightsAgreementNumberOfExtensions" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="MineralRightsPaymentsForExtension" id="nucl_MineralRightsPaymentsForExtension" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="LeaseBalanceSheetInformationTableTextBlock" id="nucl_LeaseBalanceSheetInformationTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FormerChiefFinancialOfficerMember" id="nucl_FormerChiefFinancialOfficerMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OfficeLeaseInNewYorkNewYorkMember" id="nucl_OfficeLeaseInNewYorkNewYorkMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OfficeLeaseInVancouverCanadaMember" id="nucl_OfficeLeaseInVancouverCanadaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OperatingLeaseBalanceSheetInformationAbstract" id="nucl_OperatingLeaseBalanceSheetInformationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ProfessionalFeesDisclosureTextBlock" id="nucl_ProfessionalFeesDisclosureTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ScheduleOfProfessionalFeesTableTextBlock" id="nucl_ScheduleOfProfessionalFeesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ConsultingFees" id="nucl_ConsultingFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ConvertiblePreferredStockDividendRatePercentageIfPaidInKind" id="nucl_ConvertiblePreferredStockDividendRatePercentageIfPaidInKind" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ConvertiblePreferredStockDividendRatePercentageIfPaidInCash" id="nucl_ConvertiblePreferredStockDividendRatePercentageIfPaidInCash" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NonRule10b51ArrangementModified" id="nucl_NonRule10b51ArrangementModified" type="xbrli:booleanItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="Rule10b51ArrangementModified" id="nucl_Rule10b51ArrangementModified" type="xbrli:booleanItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NumberOfUnpatentedLodeMiningClaims" id="nucl_NumberOfUnpatentedLodeMiningClaims" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NumberOfUnpatentedPlacerMiningClaims" id="nucl_NumberOfUnpatentedPlacerMiningClaims" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FunctionalAndPresentationCurrenciesPolicyPolicyTextBlock" id="nucl_FunctionalAndPresentationCurrenciesPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="UseOfEstimatesAndJudgementsPolicyPolicyTextBlock" id="nucl_UseOfEstimatesAndJudgementsPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PreferredStockDividendsPolicyPolicyTextBlock" id="nucl_PreferredStockDividendsPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ReverseRecapitalizationExchangeRatio" id="nucl_ReverseRecapitalizationExchangeRatio" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ReclassificationOfTemporaryEquityToPermanentEquityValue" id="nucl_ReclassificationOfTemporaryEquityToPermanentEquityValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ReclassificationOfRedeemableCommonStockSharesToPermanentEquity" id="nucl_ReclassificationOfRedeemableCommonStockSharesToPermanentEquity" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="StockIssuedDuringPeriodValueReverseRecapitalization" id="nucl_StockIssuedDuringPeriodValueReverseRecapitalization" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="StockIssuedDuringPeriodSharesReverseRecapitalization" id="nucl_StockIssuedDuringPeriodSharesReverseRecapitalization" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="RefundsReceivedOnPartlyFulfilledReclamationObligations" id="nucl_RefundsReceivedOnPartlyFulfilledReclamationObligations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="CashAcquiredOnReverseRecapitalization" id="nucl_CashAcquiredOnReverseRecapitalization" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DerivativeLiabilitiesIssuance" id="nucl_DerivativeLiabilitiesIssuance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PrivateInvestmentInPublicEquityMember" id="nucl_PrivateInvestmentInPublicEquityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LiabilityClassifiedWarrantsMember" id="nucl_LiabilityClassifiedWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TemporaryEquityStockIssuedDuringPeriodSharesNewIssues" id="nucl_TemporaryEquityStockIssuedDuringPeriodSharesNewIssues" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="RedemptionPriorToFirstAnniversaryOfIssuanceMember" id="nucl_RedemptionPriorToFirstAnniversaryOfIssuanceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OnOrAfterFirstAnniversaryBeforeSecondAnniversaryMember" id="nucl_OnOrAfterFirstAnniversaryBeforeSecondAnniversaryMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OnOrAfterSecondAnniversaryBeforeThirdAnniversaryMember" id="nucl_OnOrAfterSecondAnniversaryBeforeThirdAnniversaryMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OnOrAfterThirdAnniversaryBeforeFourthAnniversaryMember" id="nucl_OnOrAfterThirdAnniversaryBeforeFourthAnniversaryMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OnOrAfterFourthAnniversaryBeforeFifthAnniversaryMember" id="nucl_OnOrAfterFourthAnniversaryBeforeFifthAnniversaryMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OnOrAfterFifthAnniversaryMember" id="nucl_OnOrAfterFifthAnniversaryMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TemporaryEquityAggregatePurchasePrice" id="nucl_TemporaryEquityAggregatePurchasePrice" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="TemporaryEquityRedemptionPricePercentageOnAccruedValue" id="nucl_TemporaryEquityRedemptionPricePercentageOnAccruedValue" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="TemporaryEquityAllocationToWarrantLiability" id="nucl_TemporaryEquityAllocationToWarrantLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="EquityClassifiedWarrantsMember" id="nucl_EquityClassifiedWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ClassOfWarrantOrRightNumberAbstract" id="nucl_ClassOfWarrantOrRightNumberAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ClassOfWarrantOrRightNumberOfWarrantsIssued" id="nucl_ClassOfWarrantOrRightNumberOfWarrantsIssued" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ClassOfWarrantOrRightWeightedAverageExercisePriceAbstract" id="nucl_ClassOfWarrantOrRightWeightedAverageExercisePriceAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ClassOfWarrantOrRightWeightedAverageExercisePrice" id="nucl_ClassOfWarrantOrRightWeightedAverageExercisePrice" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="ClassOfWarrantOrRightWeightedAverageExercisePriceWarrantsIssued" id="nucl_ClassOfWarrantOrRightWeightedAverageExercisePriceWarrantsIssued" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ClassOfWarrantOrRightRemainingTermAbstract" id="nucl_ClassOfWarrantOrRightRemainingTermAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PublicWarrantsEachWarrantExercisableForOneShareOfCommonStockAtExercisePriceOf11.50PerShareMember" id="nucl_PublicWarrantsEachWarrantExercisableForOneShareOfCommonStockAtExercisePriceOf11.50PerShareMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ReverseRecapitalizationAbstract" id="nucl_ReverseRecapitalizationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ReverseRecapitalizationTextBlock" id="nucl_ReverseRecapitalizationTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ReverseRecapitalizationTableTextBlock" id="nucl_ReverseRecapitalizationTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SpringValleyAcquisitionCorpIiAndEagleNuclearEnergyCorpMember" id="nucl_SpringValleyAcquisitionCorpIiAndEagleNuclearEnergyCorpMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SpringValleyAcquisitionCorp.IiMember" id="nucl_SpringValleyAcquisitionCorp.IiMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ReverseRecapitalizationNumberOfSharesExchangedForNonredeemableCommonStock" id="nucl_ReverseRecapitalizationNumberOfSharesExchangedForNonredeemableCommonStock" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ReverseRecapitalizationExchangeRatioForNonredeemableCommonStock" id="nucl_ReverseRecapitalizationExchangeRatioForNonredeemableCommonStock" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ReverseRecapitalizationNumberOfSharesExchangedForRedeemableCommonStock" id="nucl_ReverseRecapitalizationNumberOfSharesExchangedForRedeemableCommonStock" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ReverseRecapitalizationExchangeRatioForRedeemableCommonStock" id="nucl_ReverseRecapitalizationExchangeRatioForRedeemableCommonStock" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ReverseRecapitalizationNumberOfSharesIssuedForClassAndBStockholders" id="nucl_ReverseRecapitalizationNumberOfSharesIssuedForClassAndBStockholders" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ReverseRecapitalizationNumberOfSharesIssuedForRightHolders" id="nucl_ReverseRecapitalizationNumberOfSharesIssuedForRightHolders" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NumberOfRights" id="nucl_NumberOfRights" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ReverseRecapitalizationRightsExchangeRatio" id="nucl_ReverseRecapitalizationRightsExchangeRatio" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ReverseRecapitalizationSharesIssued" id="nucl_ReverseRecapitalizationSharesIssued" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ReverseRecapitalizationSharesIssuedForTransactionCosts" id="nucl_ReverseRecapitalizationSharesIssuedForTransactionCosts" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ClassOfWarrantsOrRightsWarrantsIssuedForSettlementOfPreExistingLiability" id="nucl_ClassOfWarrantsOrRightsWarrantsIssuedForSettlementOfPreExistingLiability" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ReverseRecapitalizationSettlementOfPreExistingLiabilities" id="nucl_ReverseRecapitalizationSettlementOfPreExistingLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ClassOfWarrantsOrRightsIssuePricePerShare" id="nucl_ClassOfWarrantsOrRightsIssuePricePerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="NumberOfEarnoutSharesIssuable" id="nucl_NumberOfEarnoutSharesIssuable" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="EarnoutSharesIssuableStockPriceTrigger" id="nucl_EarnoutSharesIssuableStockPriceTrigger" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="EarnoutSharesIssuableThresholdTradingDays" id="nucl_EarnoutSharesIssuableThresholdTradingDays" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="EarnoutSharesIssuableThresholdConsecutiveTradingDays" id="nucl_EarnoutSharesIssuableThresholdConsecutiveTradingDays" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ReverseRecapitalizationNumberOfSharesIssuedForPublicShareholders" id="nucl_ReverseRecapitalizationNumberOfSharesIssuedForPublicShareholders" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ReverseRecapitalizationNumberOfSharesIssuedForFounders" id="nucl_ReverseRecapitalizationNumberOfSharesIssuedForFounders" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ReverseRecapitalizationNumberOfSharesExchanged" id="nucl_ReverseRecapitalizationNumberOfSharesExchanged" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SharesIncludingConversion" id="nucl_SharesIncludingConversion" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="ReverseRecapitalizationCash" id="nucl_ReverseRecapitalizationCash" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ReverseRecapitalizationTransactionCosts" id="nucl_ReverseRecapitalizationTransactionCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ReverseRecapitalizationProceeds" id="nucl_ReverseRecapitalizationProceeds" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ReverseRecapitalizationAssetsLiabilitiesAbstract" id="nucl_ReverseRecapitalizationAssetsLiabilitiesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ReverseRecapitalizationConversionOfPromissoryNotesToWarrants" id="nucl_ReverseRecapitalizationConversionOfPromissoryNotesToWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NetContributionFromReverseRecapitalizationByAccountingAcquirer" id="nucl_NetContributionFromReverseRecapitalizationByAccountingAcquirer" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationIssued" id="nucl_NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationIssued" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AccretionOfTemporaryEquity" id="nucl_AccretionOfTemporaryEquity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PublicWarrantsMember" id="nucl_PublicWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PrivateWarrantsMember" id="nucl_PrivateWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SpringValleyAcquisitionCorpIiMember" id="nucl_SpringValleyAcquisitionCorpIiMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ClassOfWarrantOrRightNumberOfWarrantsIssuedToShareholders" id="nucl_ClassOfWarrantOrRightNumberOfWarrantsIssuedToShareholders" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ClassOfWarrantOrRightNumberOfWarrantsIssuedToSponsor" id="nucl_ClassOfWarrantOrRightNumberOfWarrantsIssuedToSponsor" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAnnualIncrementalSharesMaximumPercentageOfOutstandingShares" id="nucl_ShareBasedCompensationArrangementByShareBasedPaymentAwardAnnualIncrementalSharesMaximumPercentageOfOutstandingShares" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="EarnoutSharesMember" id="nucl_EarnoutSharesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AdditionalCommonSharesReservedForFutureIssuance" id="nucl_AdditionalCommonSharesReservedForFutureIssuance" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="AssetAcquisitionPercentageOfInterestAcquired" id="nucl_AssetAcquisitionPercentageOfInterestAcquired" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="MineralRightsReimbursementForExpenditureAmount" id="nucl_MineralRightsReimbursementForExpenditureAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="MineralRightsSharesTransferredAdjustedValue" id="nucl_MineralRightsSharesTransferredAdjustedValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="MineralRightsSharesTransferredThresholdConsecutiveTradingDaysPriorToMineralResourceUpdate" id="nucl_MineralRightsSharesTransferredThresholdConsecutiveTradingDaysPriorToMineralResourceUpdate" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="MineralRightsSharesTransferredThresholdConsecutiveTradingDaysPriorToPreFeasibilityStudy" id="nucl_MineralRightsSharesTransferredThresholdConsecutiveTradingDaysPriorToPreFeasibilityStudy" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ScheduleOfWarrantsActivityTableTextBlock" id="nucl_ScheduleOfWarrantsActivityTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ReverseRecapitalizationNumberOfSharesIssued" id="nucl_ReverseRecapitalizationNumberOfSharesIssued" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="TemporaryEquityReclassificationToPermanentEquity" id="nucl_TemporaryEquityReclassificationToPermanentEquity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesToBeGrantedUponOccurrenceOfEvent" id="nucl_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesToBeGrantedUponOccurrenceOfEvent" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="ThresholdNumberOfDaysForGrantOfNetSmelterReturn" id="nucl_ThresholdNumberOfDaysForGrantOfNetSmelterReturn" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ClassOfWarrantOrRightGrantDateFairValue" id="nucl_ClassOfWarrantOrRightGrantDateFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="MeasurementInputFloorPriceMember" id="nucl_MeasurementInputFloorPriceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ReverseRecapitalizationPolicyTextBlock" id="nucl_ReverseRecapitalizationPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ForeignCurrencyTransactionsGainLossBeforeTax" id="nucl_ForeignCurrencyTransactionsGainLossBeforeTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="OfficeAndAdministrativeExpenseTextBlock" id="nucl_OfficeAndAdministrativeExpenseTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="OfficeAndAdministrativeExpenseTableTextBlock" id="nucl_OfficeAndAdministrativeExpenseTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SingleReportableSegmentMember" id="nucl_SingleReportableSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PrepaidExpensesPaidByIssuanceOfShares" id="nucl_PrepaidExpensesPaidByIssuanceOfShares" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ForSharesStockIssuedDuringPeriodSharesCorrectionOfPriorStockIssuance" id="nucl_ForSharesStockIssuedDuringPeriodSharesCorrectionOfPriorStockIssuance" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="StockIssuedDuringPeriodValueWarrantsExercised" id="nucl_StockIssuedDuringPeriodValueWarrantsExercised" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="StockIssuedDuringPeriodSharesWarrantsExercised" id="nucl_StockIssuedDuringPeriodSharesWarrantsExercised" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ExercisePriceResetTriggerPeriod" id="nucl_ExercisePriceResetTriggerPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ExercisePriceResetMechanismThresholdTradingDays" id="nucl_ExercisePriceResetMechanismThresholdTradingDays" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodTotalGrantDateFairValue" id="nucl_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodTotalGrantDateFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ClassOfWarrantOrRightExercised" id="nucl_ClassOfWarrantOrRightExercised" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ClassOfWarrantOrRightCancelled" id="nucl_ClassOfWarrantOrRightCancelled" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ClassOfWarrantOrRightWeightedAverageExercisePriceWarrantsExercised" id="nucl_ClassOfWarrantOrRightWeightedAverageExercisePriceWarrantsExercised" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ClassOfWarrantOrRightWeightedAverageExercisePriceWarrantsCancelled" id="nucl_ClassOfWarrantOrRightWeightedAverageExercisePriceWarrantsCancelled" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NumberOfEarnoutSharesIssuedDuringPeriod" id="nucl_NumberOfEarnoutSharesIssuedDuringPeriod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NetAssumedAssets" id="nucl_NetAssumedAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PreferredStockNotSubjectToPossibleRedemptionMember" id="nucl_PreferredStockNotSubjectToPossibleRedemptionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ChiefExecutiveOfficerAndDirectorMember" id="nucl_ChiefExecutiveOfficerAndDirectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SignificantShareholdersMember" id="nucl_SignificantShareholdersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FormerlySignificantShareholdersMember" id="nucl_FormerlySignificantShareholdersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemableStock" id="nucl_AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemableStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AdjustmentsToAdditionalPaidInCapitalReclassificationOfPreferredStockDividends" id="nucl_AdjustmentsToAdditionalPaidInCapitalReclassificationOfPreferredStockDividends" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="CashPaidForTransactionCostsOfReverseRecapitalization" id="nucl_CashPaidForTransactionCostsOfReverseRecapitalization" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="FairValueAllocatedToMineralRightsOnAcquisition" id="nucl_FairValueAllocatedToMineralRightsOnAcquisition" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NetNonCashAssetsAssumedUponReverseRecapitalization" id="nucl_NetNonCashAssetsAssumedUponReverseRecapitalization" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="WarrantsIssuedForSettlementOfLoansFromRelatedParty" id="nucl_WarrantsIssuedForSettlementOfLoansFromRelatedParty" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="InitialFairValueOfWarrantLiabilityRecognizedUnderPipeFinancing" id="nucl_InitialFairValueOfWarrantLiabilityRecognizedUnderPipeFinancing" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PreferredStockDividendPaidInKind" id="nucl_PreferredStockDividendPaidInKind" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AdditionsToMineralRightsToAccountsPayable" id="nucl_AdditionsToMineralRightsToAccountsPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AssetAcquisitionsAndBusinessCombinationsPolicyPolicyTextBlock" id="nucl_AssetAcquisitionsAndBusinessCombinationsPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="WarrantsPolicyPolicyTextBlock" id="nucl_WarrantsPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="EarnoutSharesClassificationPolicyPolicyTextBlock" id="nucl_EarnoutSharesClassificationPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ReverseRecapitalizationSharesIssuedForTransactionCostsFairValue" id="nucl_ReverseRecapitalizationSharesIssuedForTransactionCostsFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="EarningsPerShareTable" id="nucl_EarningsPerShareTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EarningsPerShareLineItems" id="nucl_EarningsPerShareLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedButNotSettledInPeriod" id="nucl_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedButNotSettledInPeriod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="UndistributedEarningsLossAllocatedToRedeemableCommonStockBasic" id="nucl_UndistributedEarningsLossAllocatedToRedeemableCommonStockBasic" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="UndistributedEarningsLossReallocatedToRedeemableCommonStockDiluted" id="nucl_UndistributedEarningsLossReallocatedToRedeemableCommonStockDiluted" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="TemporaryEquityStatedValuePerShare" id="nucl_TemporaryEquityStatedValuePerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="TemporaryEquityConversionPriceResetTriggerPeriod" id="nucl_TemporaryEquityConversionPriceResetTriggerPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="TemporaryEquityConversionPriceResetThresholdTradingDays" id="nucl_TemporaryEquityConversionPriceResetThresholdTradingDays" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="TemporaryEquityConversionPriceResetFloorPrice" id="nucl_TemporaryEquityConversionPriceResetFloorPrice" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FormerDirectorMember" id="nucl_FormerDirectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsEarlyExercisePriceHurdle" id="nucl_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsEarlyExercisePriceHurdle" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="ClassOfWarrantOrRightExercisable" id="nucl_ClassOfWarrantOrRightExercisable" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="ClassOfWarrantOrRightWeightedAverageExercisePriceWarrantsExercisable" id="nucl_ClassOfWarrantOrRightWeightedAverageExercisePriceWarrantsExercisable" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="ClassOfWarrantOrRightRemainingTermOfWarrantsExercisable" id="nucl_ClassOfWarrantOrRightRemainingTermOfWarrantsExercisable" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
</xsd:schema>
