According to modern atomic theory, light emitted by atoms originates from
A) photons emitted directly from the nucleus.
B) transitions of electrons between electron levels of the same atom.
C) collisions between atoms.
D) electrons emitted from the nucleus.

Question

Quizplus · Accepted Answer

Light emitted by atoms is due to transitions of electrons between different energy levels within the same atom. When an electron moves from a higher energy level to a lower one, it emits a photon of light corresponding to the energy difference between those levels.

According to Modern Atomic Theory, Light Emitted by Atoms Originates