Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall
ISBN 10: 0321809246
ISBN 13: 978-0-32180-924-7

Chapter 19 - Sections 19.1-19.12 - Exercises - Review Questions - Page 945: 8


A positron is an anti electron with a mass number of 0 and an atomic number of +1. When a positron is emitted, the mass number does not increase and the atomic number decrease by 1.

Work Step by Step

When a positron is emitted, a proton becomes a neutron decrease in the atomic number by 1 and leaving the mass number the same.
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