Question

An element has two electron in its n shell
1) what is its atomic number
2) state the position in periodic table
3) it is it metal or nonmetal
4) state name assigned to this group

Answer 1

Answer:

1)20

2) group 2& period 3

3)metal

4)Ca-Calcium

hope this answer useful to you

Answer 2

Answer:

1.) 20

2) period 4 & group 2

Explanation: