Compared to the 1.4 angstrom size of the O^2- anion, most common metallic cations are double to triple that size.

Name: Compared to the 1.4 angstrom size of the O 2- anion, most common metallic cations are double to triple that size.
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Most common metallic cations are smaller than the O^2- anion, as cations typically lose electrons and have a smaller ionic radius compared to anions, which gain electrons and have a larger ionic radius.