Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 2 - Atoms, Molecules, and Ions - Exercises: 2.60c

Answer

$ScN$

Work Step by Step

A Scandium ion, the problem states, has a charge of +3. Nitrogen, in order to gain the electron configuration of the nearest noble gas, Neon, must gain three electrons, making the charge of a Neon ion -3. Because the compound formed between Nitrogen and Scandium must be equal, the charges of the two must cancel out. However, the two ions have opposite charges (-3 and +3), so there must be one of each ion. Thus, the compound is ScN.
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