Question

give an example of 1.monovelent cation2.biovelent cation 3.monovelent anion4.biovelent anion.

Answer 1

Monovalent anion ➡️Chloride anion, fluoride anion - Cl- , F-

Divalent anion ➡️ oxide O2- , sulphide S2-

Monovalent cation ➡️potassium and sodium anion - K+ & Na+

Divalent ➡️Ca2+ , Mg2+

Answer 2

1. K+

2. Ca²+

3. F-

4. S²-