Forming ions for ionic bonding
Lesson 2 / 14
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I can use electron configuration diagrams (and notation) to explain how positive and negative ions are formed for ionic bonding.
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Atoms are more stable when they have a full outer shell.
Metal atoms become more stable when they lose the electron(s) in their outer shell, and become positive ions (cations).
Non–metal atoms become more stable when they gain electrons to fill their outer shell and become negative ions (anions).
Ions form through the loss or gain of electrons.
Standard ion notation uses superscript charge values where the charge follows the number (e.g. 2+, not +2).
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