What are ions?write the formulae of 2 divalent cation and anion each?
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an atom or molecule with a net electric charge due to the lose or gain of one or more electrons... ions are of two types cation nd anion....cation r formed when a neutral atom lose one or more electrons ex- Na+
anion r formed when a neutral atom gain one or more electrons. ex- Cl-
anion r formed when a neutral atom gain one or more electrons. ex- Cl-
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