Question

if all the orbitals shown in the three - dimensional model are completely filled, how many electrons does this element have? a. 4 b. 6 c. 10 d. 18

Explanation:

Step1: Identify orbital type

The shape shown is a d - orbital. A d - subshell has 5 orbitals.

Step2: Recall electron - capacity per orbital

Each orbital can hold a maximum of 2 electrons.

Step3: Calculate total electrons

Total electrons = number of orbitals×electrons per orbital. So, 5×2 = 10.

Answer:

C. 10