An atom in an excited state _____. A. has more energy than it does in the ground state B. has one more electron than it does in the ground state C. is more stable than it is in the ground state D. has less energy than it does in the ground state
The answer should be A, has more energy than it does in the ground state. De-excitation is removing electrons, so excitation would be adding more in to make it more stable. The ground state is what is considerd stable.
