Question

Consider an atom that has an electron in an excited state. The electron falls to a lower energy level. What effect does that have on the electron?

A. The electron releases energy in the form of light.
B. The electron absorbs energy in the form of light.
The electron retains its energy without any change.
D. The electron transfers its energy to other electrons.

Answer 1

The correct answer is A. When an electron falls from a higher energy level to a lower energy level, it releases energy in the form of light. This process is called spontaneous emission.