Question

State the valency of Al in Al²03​

Answer 1

Answer: Valency of Al in
`Al_2O_3` is +3.

Step-by-step explanation:

The capacity of an element to gain or lose electrons is called valency of the atom or element.

The valency of oxygen is -2 is the compound
`Al_2O_3` and let the valency of Al is x over here.

Therefore, valency of x will be calculated as follows.

`2x + * 3(-2) = 0` (as the charge on compound is 0)

`2x - 6 = 0`

`x = +3`

Therefore, valency of Al in
`Al_2O_3` is +3.