Chemistry and Chemical Reactivity (9th Edition)

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

Chapter 2 Atoms, Molecules, and Ions - Study Questions - Page 95b: 42


$Co^{3+}$, $F^-$ $CoF_3$

Work Step by Step

Cobalt (Co) III implies a $3+$ charge: $Co^{3+}$ Fluorine (F) is from group 7A, so it should gain one electron: $F^-$ The ionic compound formed by the two would be $CoF_3$.
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