Question

the electronic configuration of an element is 2,8,4 . state its group and period and name is and write its physical property

Answer 1

It's group is 4 since the valence electrons determine the group

Period 3

It's physical properties:

It is a metal.

It can form covalent bonds due to its tetravalency.

Answer 2

Since it consists of 3 shells it belongs to period 3

Since it has 4 valence electrons in its outermost shell, it belongs to group 4

Silicon is a metalloid having properties of both metals and non metals