Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 29 - Molecules and Solids - Questions: 2


Ca's two valence electrons complete the octet in the two Cl atoms' valence shells.

Work Step by Step

Ca has two s subshell electrons in its outer shell. The Cl atoms are each missing just one electron to complete an outer shell. Each of the two s electrons of Ca can fit into a “spare electron” state of a Cl atom, which makes an ionic bond. The three atoms now have filled outer shells. This is similar to the case of NaCl, diagrammed in Figures 29–4 and 29–5.
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