Question

(a) Name one ion for each of the valencies +1, +2 and +3.

(b) Name one ion for each of the valencies -1, -2 and -3.​

Answer 1

Solution

1. +1= Sodium Na+

+2= Calcium Ca+2

+3=Aluminium Al+3

2. -1= Chlorine Cl-

-2= Oxygen 0-2

-3= Nitrogen N3

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