My chem homework.

Has a mistake in one of the questions.

What kind of unstable bullshit is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1 4d3?

So I read this thread.



Kain, You are the smartest one in LG right now.

Fucking chemistry, how does it Aufbau?

I know this.
I just dont remember.
This is 9th Grade Shit.