Question

A metal M belong to 13th group in the modern periodic table. Write the valency of the metal.

Answer 1

Answer:

A metal M forms an oxide having the formula M2O3. That is the valency of metal is 3. Elements with valency 3 belongs to group IIIA (13) of the periodic table. So,metal M belongs to group IIA and 3rd period of periodic table.Tha t means metal M is Aluminium.Nov 29, 2017

4.2

Answer 2

Answer:

3

Explanation:

the 13th group is also known as IIIA group the group number is the valency of the electrons present in it so the valency of 13th group elements is 3

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