Answer to Question #342695 in Chemistry for viper

Question

Which of the following combinations of quantum numbers is not allowed?

A. n = 3, l = 2, ml = -1, ms = -1/2

B. n = 2, l = 1, ml = -1, ms = -1/2

C. n = 2, l = 0, ml = 1, ms = +1/2

D. n = 3, l = 1, ml = 0, ms = +1/2

I belive it's c but im not so sure

Answer 1

Solution:

A. n = 3, l = 2, m_l = −1, m_s = −1/2 – allowed

B. n = 2, l = 1, m_l = −1, m_s = −1/2 – allowed

C. n = 2, l = 0, m_l = 1, m_s = +1/2 – not allowed (m_l must be '0' for l = 0)

D. n = 3, l = 1, m_l = 0, m_s = +1/2 – allowed

Answer: C