Question

If an atom has three shell and number of valence electrons are two. Is this element metal or non- metal and why? Name the element and it’s valency​

Answer 1

Answer:

it is a metal

I am sure about my answer

Answer 2

Answer:

A metal

Explanation:

Since the given element has 3 shells so, let's make it!

$1s^{2}$ $2s^{2}$ $2p^{6}$ $3s^{2}$ must be its electronic configuration.

As you can see its valency is two, it belongs to the Group 2 of s block element, that is Alkaline earth metal.

And the element just poke down to Magnesium (Mg)!