The idea that atoms radiate energy only when their electrons move from higher to lower energy levels was first advanced by:
A) J. J. Thomson
B) Niels Bohr
C) Ernest Rutherford
D) Albert Einstein
E) Christian Doppler

Question

Quizplus · Accepted Answer

This idea was first advanced by Niels Bohr in his model of the atom, which introduced the concept of quantized energy levels for electrons.

The Idea That Atoms Radiate Energy Only When Their Electrons