When an atom changes its energy state from n = 4 to n = 2
A)a photon is emitted.
B)a photon is absorbed.
C)two photons are emitted.
D)two photons are absorbed.
E)None of the given answers are correct.

Question

Quizplus · Accepted Answer

When an electron in an atom transitions from a higher energy level (here, n = 4) to a lower energy level (here, n = 2), energy is released in the form of a photon. Therefore, the correct choice is A, a photon is emitted.

When an Atom Changes Its Energy State from N =