An atom in an excited state usually emits a photon and falls to a state of lower energy m about A) 10^-8 s. B) 1 s. C) 10 s. D) 1 min.

Name: An atom in an excited state usually emits a photon and falls to a state of lower energy m about A) 10 -8 s. B) 1 s. C) 10 s. D) 1 min.
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Quizplus · Accepted Answer

The typical time scale for an atom to emit a photon and transition from an excited state to a lower energy state is on the order of 10^-8 seconds, which is a very short time period.

An Atom in an Excited State Usually Emits a Photon