Question

The maximum number of electrons in a single d sub shell is:

A) 2
B) 8
C) 4
D) 10
E) 6

Answer 1

the answer is 10

Answer 2

No matter the nature of the orbital, it contains two electrons. Therefore the maximum electron content of a subshell is purely determined by the number of orbitals within it.

Each d subshell contains 5 d orbitals. Therefore 5*2 = 10 electrons. Therefore the answer is D.

I hope this helps you :)