Question

Q4: Level 2 (Unit 2)

How many electrons are in there in the d orbitals
of an atom of copper?
A. 2
B. 6
C. 9
D. 10

Answer 1

The answer is going to be D.10

Answer 2

Answer is 10 (option d)
Explanation : Maximum number of electrons held in the d orbitals is 10.
There are 5 sub-levels in a d orbital, each one can have a maximum 2 electrons.
Hence, 5 sub-levels can have a maximum of 10 electrons.
Thus, s, p, d and f orbitals can accommodate a maximum of 2, 6, 10 an 14 electrons.