An ion is an atom that has lost or gained electrons. Such as in sodium chloride (table salt) the sodium atom loses 1 electron (e-) forming a positive ion and the chlorine gains that e- forming a negatively charged chloride ion. The positive ion is called the cation while we call the negative ion the anion. Metals usually form actions while nonmetals form anions. Ions have charges, atoms are always neutral. Ions form ionic bonds.
A molecule is when two or more atoms form a covalent bond. Covalent bonds usually consist of nonmetals. H20 is an example of a molecule.
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An ion is an atom that has lost or gained electrons. Such as in sodium chloride (table salt) the sodium atom loses 1 electron (e-) forming a positive ion and the chlorine gains that e- forming a negatively charged chloride ion. The positive ion is called the cation while we call the negative ion the anion. Metals usually form actions while nonmetals form anions. Ions have charges, atoms are always neutral. Ions form ionic bonds.
A molecule is when two or more atoms form a covalent bond. Covalent bonds usually consist of nonmetals. H20 is an example of a molecule.