Which one of the following configurations depicts an excited oxygen atom? A)1s²2s²2p² B)1s²2s²2p²3s² C)1s²2s²2p¹ D)1s²2s²2p⁴ E)[He]2s²2p⁴

Question

Quizplus · Accepted Answer

An excited oxygen atom would have one or more of its electrons in a higher energy level than the ground state configuration. In option B, there is an extra electron in the 3s orbital, indicating that the atom is in an excited state. None of the other configurations show an oxygen atom with an extra electron in a higher energy level. Option E shows a neon atom (which has a full 1s shell) with an excited 2p orbital, which is not relevant to the question.

Which One of the Following Configurations Depicts an Excited Oxygen