Answer
See explanation
Work Step by Step
a. A 2p orbital
An orbital can hold a maximum of 2 electrons
Answer: 2 electrons
b. The 3d subshell
A subshell contains multiple orbitals:
The d subshell has 5 orbitals
Each orbital holds 2 electrons
Answer: 5 × 2 = 10 electrons
c. A 3d orbital
A single orbital holds 2 electrons
Answer: 2 electrons
d. The third shell
The third shell (n = 3) includes:
3s subshell → 1 orbital → 2 electrons
3p subshell → 3 orbitals → 6 electrons
3d subshell → 5 orbitals → 10 electrons
Answer: 2 + 6 + 10 = 18 electrons
