AP and TS EAMCET Engineering Model Paper 20

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Question : 148 of 160

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Correct order of energies of 2s orbitals of different elements is

E2s(H)=E2 s(Li)=E2 s(Na)=E2s(K)
E2s(H)>E2 s(Li)>E2 s(Na)>E2s(K)
E2s(H)<E2 s(Li)<E2 s(Na)<E2s(K)
E2s(H)<E2 s(Li)>E2 s(Na)>E2s(K)

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