Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 30 - Nuclear Physics and Radioactivity - Questions - Page 880: 16

Answer

They lie below the stable nuclides.

Work Step by Step

The nucleus will effectively have a proton change to a neutron after it captures an electron, which moves it to the left (one fewer proton) and up (one more neutron) in Figure 30-2. The process occurs to increase the nuclear stability, so the original nucleus must have been below the line of stability.
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