Multiple Choice
In a ground state atom of krypton (Kr), how many electrons have the angular momentum quantum number l = 2?
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9. Quantum Mechanics
Quantum Numbers: Angular Momentum Quantum Number
Multiple Choice
For a d orbital, what is a possible value of the angular momentum quantum number, l?
A
2
B
1
C
3
D
0
Verified step by step guidance1
Recall that the angular momentum quantum number \(l\) defines the shape of the orbital and can take integer values from \$0\( up to \)n-1\(, where \)n$ is the principal quantum number.
Each value of \(l\) corresponds to a specific type of orbital: \(l=0\) is an s orbital, \(l=1\) is a p orbital, \(l=2\) is a d orbital, and \(l=3\) is an f orbital.
Since the problem asks for the angular momentum quantum number for a d orbital, identify the value of \(l\) associated with d orbitals.
Match the letter designation 'd' to its corresponding \(l\) value, which is \$2$.
Therefore, the possible value of the angular momentum quantum number \(l\) for a d orbital is \$2$.
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