Question

give the valency of cation and anion in each compound magnesium carbonate

Answer 1

Answer:

Magnesium ion = cation = 2 valency

Carbonate ion = anion = 2 valency

Explanation:

In magnesium carbonate, the cation is magnesium ion while the anion is carbonate ion. The valency is given by modulus of the charge of the radical or ion. The charge on magnesium is +2, so the valency of magnesium becomes |+2| = 2. The charge of carbonate ion is -2 so, the valency of carbonate is |-2| =-(-2) = 2