Question

Which is a set of valid quantum numbers?
A. n = 4, l = 4, m = 4
B. n = 1, l = –2, m = 0
C. n = –1, l = 0, m = 0
D. = 4, l = 3, m = 3

Answer 1

n is the principal energy level, which means it must be a positive integer.

Answer 2

l can be any integer between 0 and n-1

Answer 3

And m can be any integer between -l and +l.

Answer 4

Do you see any answers that aren't possible?

Answer 5

Here is some more good info on the subject. http://chemed.chem.purdue.edu/genchem/topicreview/bp/ch6/quantum.html

Answer 6

You're welcome. :)

Answer 7

thanks