Question

Given n = 2, identify which of the quantum numbers is NOT possible.

A) 1 = 1
B) 1 = 2
C) m(I) = -1
D) m(s) = +12
E) m(s) = -1½

Answer 1

The quantum number that is NOT possible is 1 = 2.

Step-by-step explanation:

Given n = 2, we have to identify which of the quantum numbers is NOT possible. Let's analyze each option:

A) 1 = 1: This is a valid quantum number.

B) 1 = 2: This is not a valid quantum number as l cannot be equal to or greater than n.

C) m(I) = -1: This is a valid quantum number.

D) m(s) = +12: This is not a valid quantum number as the spin quantum number, ms, can only be +1/2 or -1/2.

E) m(s) = -1½: This is not a valid quantum number as the spin quantum number, ms, can only be +1/2 or -1/2.

Therefore, the quantum number that is NOT possible is 1 = 2.