Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning
ISBN 10: 1133949649
ISBN 13: 978-1-13394-964-0

Chapter 25 Nuclear Chemistry - 25-2 Nuclear Reactions and Radioactive Decay - Review & Check for Section 25-2 - Page 982: 1


(a) alpha radiation.

Work Step by Step

The mass number is decreased by 4 when radon-222 is converted to polonium-218. It is the alpha particle emission that causes a decrease of four units in mass number.
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