Charged atom or molecule (ion)

An atom or molecules that has gained a charge being  positive or negative.
One electron is a one negative charge and one proton is a one positive charge. Having more electrons than protons in an atom means the atom is now a negatively charged ion (anion), while having less electrons than protons means it is a positively charged ion (cation).

(Last modified: 26th Sep 2016)

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