Chemistry and Chemical Reactivity (9th Edition)

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

Chapter 7 The Structure of Atoms and Periodic Trends - Study Questions: 69

Answer

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Work Step by Step

K: group 1, period 4 $[Ne]\ 3s^2\ 3p^6\ 4s^1$ $K^+: [Ne]\ 3s^2\ 3p^6$ $K^{2+}: [Ne]\ 3s^2\ 3p^5$ In the second ionization energy, an electron would have to be removed from an inner shell and break a noble gas electronic configuration.
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