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The electron configuration of carbon atom in its excited ...

The electron configuration of carbon atom in its excited state is

A.

1s $^{2}$ 2s $^{2}$ 2px $^{2}$ 2py $^{0}$

B.

1s $^{2}$ 2s $^{2}$ 2px $^{1}$ 2py $^{1}$

C.

1s $^{2}$ 2s $^{1}$ 2px $^{1}$ 2py $^{1}$ 2pz $^{1}$

D.

1s $^{1}$ 2s $^{2}$ 2px $^{1}$ 2py $^{1}$

View answer & explanation

Correct answer is C

- So any electron configuration in which the last electron (again, the valence electron) is in a higher energy orbital, this element is said to be in an excited state.

- When a carbon atom becomes excited by absorbing energy, one of its 2s electrons is promoted into the 2p sublevel.

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