Chemistry 12th Edition

Published by McGraw-Hill Education
ISBN 10: 0078021510
ISBN 13: 978-0-07802-151-0

Chapter 2 - Atoms, Molecules, and Ions - Questions & Problems - Page 69: 2.35

Answer

Please see the work below.

Work Step by Step

We know that $Na^+$ has 11 protons and 10 electrons. $Ca^{+2}$ has 20 protons and 18 electrons. $Al^{+3}$ has 13 protons and 10 electrons. $Fe^{+2}$ has 26 protons and 24 electrons. $I^-$ has 53 protons and 54 electrons. $F^-$ has 9 protons and 10 electrons. $S^{-2}$ has 16 protons and 18 electrons. $O_2^-$ has 8 protons and 10 electrons. $N_3^-$ has 7 protons and 10 electrons.
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