Question

How many unpaired electrons are in a magnesium atom?

Answer 1

A magnesium atom has two unpaired electrons

Explanation:

Magnesium has only two valence electrons. (Therefore, it would need to pair up with other atoms in the periodic table to fulfil the octet rule.) As for the number of unpaired electrons, there should be 2 unpaired electrons for `"Mg"` when it is on its own.