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A positive ion, also known as a cation, has a positive nuclear charge.

For example, Na+1, Mg+2, and Al+3 are all positive ions, because they tend to give away electrons to have a full eight electrons in its last shell and become stable.

O-2, F-1, and I-1 are all anions, negatively charged ions. They tend to gain electrons to have a full eight electrons in its last shell and become stable.

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11y ago

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