Question

What is a possible set of quantum numbers for the unpaired electron in the following electron configuration: [Ar] 3d10 4s2 4p5? a. n=3, ℓ =1, mℓ =−1, ms =+½ b. n=3, ℓ =2, mℓ =−1, ms =−½ c. n=4, ℓ =2, mℓ =−2, ms =+½ d. n=4, ℓ =0, mℓ = 0, ms =+½ e. n=4, ℓ =1, mℓ =−1, ms =+½

Answer 1

Answer:E

Explanation:

The electron is expected to be in any of the 4p orbitals. For the 4p orbitals

n=4

l=1

ml=-1,0,1

ms=-1/2 or +1/2

All the ml and ms configurations are equiprobable hence the answer.