Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0132525763
ISBN 13: 978-0-13252-576-3

Chapter 5 - Electrons in Atoms - 5 Assessment - Page 155: 87

Answer

The stars do not glow when the light is off. When the lights are on. the atoms in the stars are absorbing energy and the electrons remain in their higher energy levels. When the lights are turned off. electrons are emitted, which is why you see light. The electrons drop to lower energy levels. Once the electrons reach the ground state, the light will not longer persist.

Work Step by Step

The stars do not glow when the light is off. When the lights are on. the atoms in the stars are absorbing energy and the electrons remain in their higher energy levels. When the lights are turned off. electrons are emitted, which is why you see light. The electrons drop to lower energy levels. Once the electrons reach the ground state, the light will not longer persist.
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