Question

Which of the following sets of quantum numbers are not allowed. For each incorrect set, state why it is incorrect. For each correct set, name the atomic orbital.

i. n=4, l=3, ml =2, ms =-1/2
ii. n=2, l=1, ml =-1, ms =-1
iii. n=5, l=-4, ml =2, ms =+1/2

can you guys help me
my answers
i = i don't know
ii = ms is incorrect it is suppose to be -1/2
iii= l is incorrect because when n=5 l can be 0,1,2,3,4 not t-4

Answer 1

You are correct that both ii and iii are incorrect and for the reason you cite.
i is correct.
If n = 4, l can be 0,1,2,or 3; ml can be -3.-2,-1,0,1,2,3; ms can be +/- 1/2.
Note: for iii, I think you meant to write "l can be 0,1,2,3 or 4." t-4 doesn't make sense to me.

Answer 2

yes thank you and that's what I mean for iii typo error