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  <xs:element id="atek_BusinessCombinationAgreementMember" name="BusinessCombinationAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_NewAceGreensMember" name="NewAceGreensMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
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  <xs:element id="atek_PIPEInvestorsMember" name="PIPEInvestorsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_PurchaseOfShares" name="PurchaseOfShares" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="atek_SeriesACumulativeConvertiblePreferredStockMember" name="SeriesACumulativeConvertiblePreferredStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
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  <xs:element id="atek_SummaryofSignificantAccountingPoliciesScheduleofComputeBasicandDilutedNetIncomeLossPerShareDetailsTable" name="SummaryofSignificantAccountingPoliciesScheduleofComputeBasicandDilutedNetIncomeLossPerShareDetailsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
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  <xs:element id="atek_CashWithdrawnFromTrustInConnectionWithRedemption" name="CashWithdrawnFromTrustInConnectionWithRedemption" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
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  <xs:element id="atek_CitigroupMember" name="CitigroupMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
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  <xs:element id="atek_DeferredUnderwritingsCommission" name="DeferredUnderwritingsCommission" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
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  <xs:element id="atek_MinimumNetTangibleAssetsUponConsummationOfBusinessCombination" name="MinimumNetTangibleAssetsUponConsummationOfBusinessCombination" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
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  <xs:element id="atek_FundsForPaymentOfGeneralOperatingExpenses" name="FundsForPaymentOfGeneralOperatingExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
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  <xs:element id="atek_PublicPricePerShareHeldInTrustAccount" name="PublicPricePerShareHeldInTrustAccount" type="dtr:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
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  <xs:element id="atek_ExciseTaxPercentageOfTheFairMarketValue" name="ExciseTaxPercentageOfTheFairMarketValue" type="dtr:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_OfferingCostsAssociatedWithTheInitialPublicOfferingPolicyTextBlock" name="OfferingCostsAssociatedWithTheInitialPublicOfferingPolicyTextBlock" type="dtr:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_TwoZeroTwoFourAnnualMeetingMember" name="TwoZeroTwoFourAnnualMeetingMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_ConversionOfCommonStockMember" name="ConversionOfCommonStockMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
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  <xs:element id="atek_PriceThresholdOfNewlyIssuedStockToCauseAdjustmentOfExerciseWarrantPricePercentageOfEquityProceedsFromIssuance" name="PriceThresholdOfNewlyIssuedStockToCauseAdjustmentOfExerciseWarrantPricePercentageOfEquityProceedsFromIssuance" type="dtr:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
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  <xs:element id="atek_ThresholdPeriodForFillingRegistrationStatementAfterBusinessCombination" name="ThresholdPeriodForFillingRegistrationStatementAfterBusinessCombination" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_WarrantsAndRightsOutstandingExercisableTermAfterBusinessCombination" name="WarrantsAndRightsOutstandingExercisableTermAfterBusinessCombination" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
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  <xs:element id="atek_EffectiveIncomeTaxRateReconciliationPermDifferencesPercent" name="EffectiveIncomeTaxRateReconciliationPermDifferencesPercent" type="dtr:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_EffectiveIncomeTaxRateReconciliationLossOnReturnOfCapitalLiabilityChangePercent" name="EffectiveIncomeTaxRateReconciliationLossOnReturnOfCapitalLiabilityChangePercent" type="dtr:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
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  <xs:element id="atek_AceGreenRecyclingsMember" name="AceGreenRecyclingsMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
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  <xs:element id="atek_AfterCompletionOfBusinessCombination" name="AfterCompletionOfBusinessCombination" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_NumberOfAdditionalUnitsPurchased" name="NumberOfAdditionalUnitsPurchased" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_LockUpAgreementsMember" name="LockUpAgreementsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_CashDepositedToTheTrustAccountToRefundTheOverWithdrawal" name="CashDepositedToTheTrustAccountToRefundTheOverWithdrawal" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="atek_FairValueMeasurementsScheduleofAssetsthatareMeasuredatFairValueonaRecurringBasisParentheticalsDetailsTable" name="FairValueMeasurementsScheduleofAssetsthatareMeasuredatFairValueonaRecurringBasisParentheticalsDetailsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
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  <xs:element id="atek_PaymentOfCashDepositedToTrustAccount" name="PaymentOfCashDepositedToTrustAccount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xs:element id="atek_IncreaseDecreaseInExciseTaxPayable" name="IncreaseDecreaseInExciseTaxPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
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  <xs:element id="atek_AdjustmentsToAdditionalPaidInCapitalCommonStockToBeTransferredToFundPromissoryNote" name="AdjustmentsToAdditionalPaidInCapitalCommonStockToBeTransferredToFundPromissoryNote" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
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  <xs:element id="atek_ClassACommonStockToBeTransferredToFundPromissoryNote" name="ClassACommonStockToBeTransferredToFundPromissoryNote" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xs:element id="atek_CashWithdrawnFromTrustAccountInConnectionWithRedemption" name="CashWithdrawnFromTrustAccountInConnectionWithRedemption" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="atek_CashWithdrawnFromTrustAccountToPayFranchiseAndIncomeTaxes" name="CashWithdrawnFromTrustAccountToPayFranchiseAndIncomeTaxes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="atek_IncreaseDecreaseInFranchiseTaxPayable" name="IncreaseDecreaseInFranchiseTaxPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="atek_AdjustmentsToAdditionalPaidInCapitalReversalOfExciseTaxPayableAttributableToRedemptionOfCommonStock" name="AdjustmentsToAdditionalPaidInCapitalReversalOfExciseTaxPayableAttributableToRedemptionOfCommonStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="atek_StockIssuedDuringPeriodValueClassACommonStockToBeTransferredInConnectionWithPolarSubscriptionAgreement" name="StockIssuedDuringPeriodValueClassACommonStockToBeTransferredInConnectionWithPolarSubscriptionAgreement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="atek_InitialPublicOfferingAndOverAllotmentTextBlock" name="InitialPublicOfferingAndOverAllotmentTextBlock" type="dtr:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
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  <xs:element id="atek_SponsorOwned" name="SponsorOwned" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xs:element id="atek_SponsorMember" name="SponsorMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
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  <xs:element id="atek_ReturnOfCapitalSubscriptionSharesExpense" name="ReturnOfCapitalSubscriptionSharesExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="atek_RelatedPartyTransactionsDetailsTable" name="RelatedPartyTransactionsDetailsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_PromissoryNoteWithRelatedPartyMember" name="PromissoryNoteWithRelatedPartyMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_SupportServicesMember" name="SupportServicesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_SubscriptionOfShareLliability" name="SubscriptionOfShareLliability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xs:element id="atek_UnsecuredPromissoryNoteMember" name="UnsecuredPromissoryNoteMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_WorkingCapitalLoans" name="WorkingCapitalLoans" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="atek_WorkingCapitalLoansMember" name="WorkingCapitalLoansMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_WorkingCapitalNoteMember" name="WorkingCapitalNoteMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_SpecialMeetingMember" name="SpecialMeetingMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_DeferredUnderwritingRemainsOutstanding" name="DeferredUnderwritingRemainsOutstanding" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xs:element id="atek_FirstExtensionSpecialMeetingMember" name="FirstExtensionSpecialMeetingMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_PercentageOfOutstandingShares" name="PercentageOfOutstandingShares" type="dtr:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_OutstandingCommonStockNotRedeemed" name="OutstandingCommonStockNotRedeemed" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xs:element id="atek_MisallocatedRestrictedFunds" name="MisallocatedRestrictedFunds" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="atek_PublicSharesPerecentage" name="PublicSharesPerecentage" type="dtr:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_PrivatePlacementUnitMember" name="PrivatePlacementUnitMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_PriceOfPublicPerShare" name="PriceOfPublicPerShare" type="dtr:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_FundsWithdrawnFromTrustAccount" name="FundsWithdrawnFromTrustAccount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="atek_BusinessCombinationMember" name="BusinessCombinationMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_InitialPublicOfferingandOverAllotmentDetailsTable" name="InitialPublicOfferingandOverAllotmentDetailsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_InitialPublicOfferingAndOverAllotmentMember" name="InitialPublicOfferingAndOverAllotmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_contributionOnDefaultPerShares" name="contributionOnDefaultPerShares" type="dtr:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_FounderShares1Member" name="FounderShares1Member" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_KevinWrightAndJeaninePercivalWrightRevocableTrustMember" name="KevinWrightAndJeaninePercivalWrightRevocableTrustMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_PolarCapitalInvestmentMember" name="PolarCapitalInvestmentMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_PolarIssuedShares" name="PolarIssuedShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_PolarMultiStrategyMasterFundMember" name="PolarMultiStrategyMasterFundMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_AthenaTechnologyAcquisitionCorpIIMember" name="AthenaTechnologyAcquisitionCorpIIMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_UnitsIssuedDuringPeriodSharesNewIssues" name="UnitsIssuedDuringPeriodSharesNewIssues" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_PublicWarrant" name="PublicWarrant" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_PublicShareMember" name="PublicShareMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_NumberOfShareIssuedPerUnit" name="NumberOfShareIssuedPerUnit" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_WorkingCapitalLoansOutstanding" name="WorkingCapitalLoansOutstanding" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xs:element id="atek_TemporaryEquityDiminutionOfCarryingValueToRedemptionValue" name="TemporaryEquityDiminutionOfCarryingValueToRedemptionValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="atek_LessAbstract" name="LessAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_AugustSubscriptionAgreementMember" name="AugustSubscriptionAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_TrustAgreementMember" name="TrustAgreementMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_WithdrawnFromTrustAccountToPay" name="WithdrawnFromTrustAccountToPay" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="atek_TenderedForRedemption" name="TenderedForRedemption" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="atek_RestrictedFundsInOperatingAccount" name="RestrictedFundsInOperatingAccount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="atek_OrganizationandBusinessOperationsDetailsTable" name="OrganizationandBusinessOperationsDetailsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
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  <xs:element id="atek_WorkingCapitalsDeficit" name="WorkingCapitalsDeficit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xs:element id="atek_PeriodCommencingOnTheClosingDateOfTheBusinessCombination" name="PeriodCommencingOnTheClosingDateOfTheBusinessCombination" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_PIPEWarrantsMember" name="PIPEWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_RegistrableSecuritiesAfterTheClosingDateOfTheBusinessCombination" name="RegistrableSecuritiesAfterTheClosingDateOfTheBusinessCombination" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_UnderwritersOverAllotmentOptionPeriod" name="UnderwritersOverAllotmentOptionPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_UnderwritingAgreementMember" name="UnderwritingAgreementMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="atek_UnderwritingDiscount" name="UnderwritingDiscount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="atek_UnderwritingDiscountPerUnit" name="UnderwritingDiscountPerUnit" type="dtr:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_ClassOfWarrantOrRightRedemptionOfWarrantsOrRightsThresholdConsecutiveTradingDays" name="ClassOfWarrantOrRightRedemptionOfWarrantsOrRightsThresholdConsecutiveTradingDays" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_ClassOfWarrantOrRightRedemptionOfWarrantsOrRightsThresholdTradingDays" name="ClassOfWarrantOrRightRedemptionOfWarrantsOrRightsThresholdTradingDays" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_CommonStockPercentage" name="CommonStockPercentage" type="dtr:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_CommonStockThresholdTradingDays" name="CommonStockThresholdTradingDays" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_PercentageOfWarrantExercisePriceAdjustedToPriceReceivedInNewIssuance" name="PercentageOfWarrantExercisePriceAdjustedToPriceReceivedInNewIssuance" type="dtr:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="atek_PriceThresholdOfNewlyIssuedStockToCauseAdjustmentOfExerciseWarrantPrice" name="PriceThresholdOfNewlyIssuedStockToCauseAdjustmentOfExerciseWarrantPrice" type="dtr:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
</xs:schema>
