General Chemistry 10th Edition

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

Chapter 8 - Electron Configurations and Periodicity - Questions and Problems - Page 331: 8.59


Please see the work below.

Work Step by Step

For $Z=19$, we know that 4s electron is unpaired and it causes the ground state of the potassium atom to be a paramagnetic substance.
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