Which one of the following statements best explains why a neon sign does not emit visible light after it is turned off?
A)All of the neon atoms are ionized.
B)Most of the neon atoms are in the ground state.
C)None of the neon atoms are in the n = 2 state.
D)All of the neon atoms have principle quantum number n = 0.
E)Only some of the neon atoms have returned to the n = 1 state.

Question

Quizplus · Accepted Answer

When a neon sign is turned on, energy is applied to the neon atoms causing them to become excited and move to higher energy levels. When they return to their ground state, they release energy in the form of light, creating the visible glow of the sign. However, when the sign is turned off, the neon atoms no longer receive this energy and eventually return to their ground state naturally. In this state, they do not emit visible light. Therefore, most of the neon atoms in the sign are in the ground state and do not emit visible light after the sign is turned off.

Which One of the Following Statements Best Explains Why a Neon