Which of the following electronic configurations is not possible: Group of answer choices Li-3: 1s2 2s1...

Question

Question

Which of the following electronic configurations is not possible:

Group of answer choices

Li-3: 1s2 2s1

N-7: 1s2 2s2 2p3

Ne-10: 1s2 2p6 3s2

K-19: 1s2 2s2 2p6 3s2 3p6 4s1

All of the above configurations are possible.

Answer 1

Answer #1

PLEASE UPNOTE 2 Ne-10 15² 226 352 This configuration is not possible because e orbital is talled before s orbital. So 3rd opt

Answer 2

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