Electrons can sometimes fill orbitals in a manner other than according to the rules we have specified. If they do so we say the atom is in an excited state. Which of the following represent(s) the excited state of an atom? A) 1s²2s²2p⁶3s² B) 1s²2s²2p⁶3s¹3p¹ C) both a and b D) neither a nor b

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Quizplus · Accepted Answer

In option B, the electron configuration shows an electron in the 3p orbital before the 3s orbital is fully filled, indicating an excited state.

Electrons Can Sometimes Fill Orbitals in a Manner Other Than