Question #be5d9

1 Answer
Jan 4, 2018

Answer:

Magnesium (Mg)

Explanation:

A neutral magnesium atom has #12# electrons.

#[Ne]3s^2# has a total of #2+10=12# electrons (because Neon has #10#).

Therefore, magnesium (Mg) has an electron configuration of #[Ne]3s^2#.