In a formula unit of Mg(OH)₂, there are one magnesium ion and two hydroxide ions; or one magnesium, two oxygen, and two hydrogen atoms.
What is Formula Unit ?
A formula unit is the chemical formula of an ionic compound that lists the ions in the lowest ratio that equals a neutral electrical charge.
In chemistry, we use chemical formulas to describe the number of elements or molecules that make up a substance.
Therefore , In a formula unit of Mg(OH)₂, there are one magnesium ion and two hydroxide ions; or one magnesium, two oxygen, and two hydrogen atoms.
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