Q. Sets of quantum numbers of six electrons are listed below. How many of the following is/are VALID?
i. $n = 3, l = 2, m_{l} = + 1, m_{s} = + 1/2$
ii. $n = 4, l = 0, m_{l} = 0, m_{s} = - 1/2$
iii. $n = 5, l = 3, m_{l} = + 2, m_{s} = - 1/2$
iv. $n = 2, l = 1, m_{l} = + 2, m_{s} = + 1/2$
v. $n = 3, l = 0, m_{l} = + 1, m_{s} = - 1/2$
vi. $n = 4, l = 4, m_{l} = 0, m_{s} = + 1/2$

121 170 Structure of Atom Report Error

Answer: 3

Solution:

Q. Sets of quantum numbers of six electrons are listed below. How many of the following is/are VALID? i. n=3,l=2,ml​=+1,ms​=+1/2 ii. n=4,l=0,ml​=0,ms​=−1/2 iii. n=5,l=3,ml​=+2,ms​=−1/2 iv. n=2,l=1,ml​=+2,ms​=+1/2 v. n=3,l=0,ml​=+1,ms​=−1/2 vi. n=4,l=4,ml​=0,ms​=+1/2