Quantum Numbers
The maximum number of electrons that can have n = 3 and l = 2 is:
Select the correct option:
Solution
10
- Identify the subshell: n=3,l=2 corresponds to the 3d subshell.
- Determine Number of Orbitals: The number of orbitals in a subshell is given by (2l+1).
- For l=2: 2(2)+1=5 orbitals.
- Determine Number of Electrons: According to Pauli's Exclusion Principle, each orbital can hold a maximum of 2 electrons.
- Total capacity =5 orbitals×2 electrons/orbital=10 electrons.
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About This Question
- Subject
- chemistry
- Chapter
- atomic structure
- Topic
- quantum numbers
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
10
- Identify the subshell: n=3,l=2 corresponds to the 3d subshell.
- Determine Number of Orbitals: The number of orbitals in a subshell is given by (2l+1).
- For l=2: 2(2)+1=5 orbitals.
- Determine Number of Electrons: According to Pauli's Exclusion Principle, each orbital can hold a maximum of 2 electrons.
- Total capacity =5 orbitals×2 electrons/orbital=10 electrons.
This easy difficulty chemistry question is from the chapter atomic structure, covering the topic of quantum numbers. It appeared in the 2025 exam.
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