Q. 6

What helps in determining the formula of an ionic compound?

Answer :

Valency helps in determining the formula of an ionic compound. Valency can be used to find out how the atoms of an element will combine with the atoms of another element to form a compound.

For example: Magnesium chloride


By applying criss-cross method:



Formula: MgCl2


Thus, the formula for magnesium chloride is MgCl2.


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