n = 1,
l = 0
ml = 0
ms = +1/2 and -1/2 for the first two electron in Li. The last electron will be
n = 2
l = possible 0 and 1
ml = 0 for the 0
ms = +1/2
l = 1 is a higher energy level and starts filling with the first p electron (which is 5 = B) but Li ground state can't have l=1 since it has no p electrons.
Consider the last electron in Li: Values n,l,ml,and ms of 1,1,0, +1/2 are not allowable. Why not.
I do not understand this question. I am not sure what the values for the last electron would be.
1 answer
1 answer