Question

What happens when an electron makes the transition described by Bohr’s third postulate?

Options

• It remains in the same orbit and emits radiation continuously.

• It moves from one specified non-radiating orbit to another orbit of lower energy, and a photon is emitted.

• It spirals inward through every possible orbit and emits a continuous spectrum.

• It moves to an orbit of lower energy without any photon emission.

Answer 1

Bohr’s third postulate describes a transition between specified orbits. A transition to an orbit of lower energy emits a photon with energy equal to the difference between the states.