Which one or more of the following events can raise an atom from its ground state to an excited state?
A)spontaneous emission of a photon
B)induced emission of a photon
C)absorption of a photon
D)a collision with another atom
E)Both C and D

Question

Quizplus · Accepted Answer

The absorption of a photon (C) can raise an atom from its ground state to an excited state by transferring energy to the atom. Additionally, a collision with another atom (D) can also transfer energy to the atom, raising it to an excited state. Therefore, both options C and D can raise an atom from its ground state to an excited state.

Which One or More of the Following Events Can Raise