an element y forms an oxide with formula y2O3.

1)what is the valency ofy?

2)write the formula of chloride of y and sulphate of y

Question

an element y forms an oxide with formula y2O3
1)what is the valency ofy?
2)write the formula of chloride of y and sulphate of y

Shashanka · Accepted Answer

i) Valency of y = 3 (from y2O3)
ii) chloride of y = YCl3
Sulphate of y = Y2(SO4)3