Question

Which of the following set of quantum numbers represents the highest energy of an atom ?

• A. n = 3, l = 0, m = 0, s = + $\frac{1}{2}$
• B. n = 3, l = 1, m =1, s = +$\frac{1}{2}$
• C. n = 3, l = 2, m = 1, s = +$\frac{1}{2}$
• D. n = 4, l = 0, m = 0, s = +$\frac{1}{2}$

Answer 1

Answer: (C)

n = 3, l = 2, m = 1, s = +$\frac{1}{2}$

Answer 2

The electron have n + l higher value have hegher energy.

n + l = 3 + 0 = 3

n + l = 3 + 1 = 4

n + l = 3 + 2 = 5 (highest energy)

n + l = 4 + 0 = 4