Question #179b0

2 Answers
Jan 23, 2014

The standard electron configuration for magnesium would be #1s^2 2s^2 2p^6 3s^2#

The noble gas one row above magnesium is neon. Neon would have an electron configuration of #1s^2 2s^2 2p^6#.

Therefore, #1s^2 2s^2 2p^6# can be replaced by the noble gas [Ne].
This makes the noble gas configuration of magnesium
[Ne] #3s^2#

I hope this is helpful.

Check out this You Tube video.

The following video discusses how to find the noble gas electron configuration for magnesium.

video from: Noel Pauller