Question

What is the electronic configuration of the cation formed from the element with atomic number 12?

Answer 1

Answer:2,8

Explanation:

Atomic no 12 is magnesium

Magnesium has a config of 2,8,2 because it has 12 electrons

But a cation of magnesium is Mg +2 because it gets rid of 2 electrons to attain stability.

When this cation loses 2 electrons it now has 10 electrons in total

Making it 2,8 config

I hope this helps.