Question

23. An element X belongs to 3rd period and group 2 of
the periodic table. State
1) the valency of x
1) Whether it is metal or a non mental​

Answer 1

Answer:

valency is 6 and it is a non metal

Answer 2

Answer:

The element is Magnesium

it's electronic configuration is 1s² 2s² 2p6 3s²

• the valency of x is +2
• it is a metal because it belongs to 2nd group