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19-12-2022
Chemistry

Answered

Which of the following ground-state electron configurations represents the atom that has the lowest first-ionization energy?
1s2 2s2 2p51s2 2s2 2p61s2 2s2 2p6 3s11s2 2s2 2p6 3s21s2 2s2 2p6 3s1 3p1

Answer :

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