Ionic compounds are chemical species that have negative and positive charge ions. Its chemical formula is shown as MgCl₂.
Ionic compounds are ion-containing species that have cations that are positive in charge and anions that are negative in charge. Though they contain anion and cation they are neutral.
Charge on magnesium ion is 2+ and that on chloride ion is 1-. The two species are balanced as:
Mg2⁺Cl⁻Cl⁻
As there are two chloride ions and one magnesium ion so the formula is shown as, MgCl₂.
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