metal - atoms that tend to lose electrons when forming chemical bonds, ion - is an electrically charged atom that has gained or lost one or more electrons., nonmetal - atoms that tend to gain or share electrons when forming chemical bonds, anion - is a negatively charged ion that has more electrons than protons., cation - is a positively charged ion that has more protons than electrons, ionic bond - is a bond formed by the attraction between two oppositely charged ions, valence electrons - are the electrons in the outermost shell of an atom,

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