Question

Complete the table:-
Atomic no. :- 11
Protons and electrons:-11
Electronic confinguration :- 2,8,1
Metal/Non metal :- ???

How do you find if the above element is a metal or non metal?

Answer 1

Hey friend!!! listen


Metals have the property to loose electron easily..
here u can see that the given atom has 1 electron in its outermost shell or valence shell.
so it can loose 1 electron so that it can become stable.
so,we can conclude that the given element is a metal.

Answer 2

Atomic no. = 11
Protons and electrons = 11
Electronic Configuration = 2, 8, 1
Metal / Non metal = Metal
Sodium is the metal with atomic no. 11 and electronic configuration 2, 8, 1