True. A Lewis dot diagram can effectively illustrate how a calcium atom, which has a 2+ charge, transfers its two valence electrons to an oxygen atom, which has a 2− charge, resulting in the formation of an ionic bond. The diagram should show the calcium atom with no dots (indicating its loss of two electrons) and the oxygen atom with a full octet (eight dots) after gaining those two electrons.
Calcium has a 2+ charge, and oxygen has a 2− charge. A Lewis dot diagram should contain one calcium atom and one oxygen atom to show how these atoms form an ionic bond.
True
False
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