General Chemistry 10th Edition

Published by Cengage Learning
ISBN 10: 1-28505-137-8
ISBN 13: 978-1-28505-137-6

Chapter 20 - Nuclear Chemistry - Questions and Problems - Page 868: 20.29

Answer

Please see the work below.

Work Step by Step

We know that the large, positively charged He nucleus which makes up alpha radiation is unable to pass through the atoms which make up solid materials for example wood without coming in contact by the nuclei. However, gamma radiations pass through such materials.
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