Which of the following representation of excited states of atoms is impossible?

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1s12s1

[Ne] 3s23p34s1

[Ne] 3s23p34s13d6

1s22s22p73s2

answer is D.

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Detailed Solution

The representation of excited states of atoms is impossible in 1s22s2 2p73s2 because maximum electrons are present in p orbital is 6

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