Question

an element M is the third group of the periodic table.write the formula of its oxide

Answer 1

the formula of its oxide is -

the formula of its oxide is -M2O3....hope it helps

Answer 2

Hello ,

Here we go,

The element in the third group of periodic table is represented by letter M will have valency +3.

When M reacts with O2 it forms the following compound

M2O3 which is basic in nature.

I hope my answer will help you.