Chemistry: The Molecular Nature of Matter and Change 7th Edition

Published by McGraw-Hill Education
ISBN 10: 007351117X
ISBN 13: 978-0-07351-117-7

Chapter 24 - Problems: 24.27

Answer

See explanation below.

Work Step by Step

Thorium-232 and Uranium-238 are the primary isotopes responsible for helium generation. As these isotopes continue in their decay chain (ultimately to stable lead isotopes), the three primary radioactive particles released are: alpha (a helium nucleus), beta (an electron), and gamma (X-rays). The alpha particle consists of two protons and two neutrons and when it attracts two electrons, a helium atom is born. This answer can be found in the chapter 24 reading.
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