Chemistry and Chemical Reactivity (9th Edition)

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

Chapter 2 Atoms, Molecules, and Ions - Study Questions - Page 95a: 11


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Work Step by Step

$\alpha$ particles are equivalent to the nucleus of helium: $He^{2+}$, so they are positively charged, have the higher mass among all three and are attracted to the negative charged plate. $\beta$ particles are equivalent to the electrons: $e^-$, so they are negatively charged and are attracted to the positive charged plate. $\gamma$ particles are not charged and are not attracted to either charged plate.
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