Multiple Choice
For an electron in the principal energy level n = 4, what are the possible values of the angular momentum quantum number l?
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9. Quantum Mechanics
Quantum Numbers: Angular Momentum Quantum Number
Multiple Choice
Which value of the angular momentum quantum number, l, corresponds to electrons in p orbitals?
A
l = 3
B
l = 1
C
l = 0
D
l = 2
Verified step by step guidance1
Recall that the angular momentum quantum number, \(l\), determines the shape of the atomic 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: \(l=0\) corresponds to s orbitals, \(l=1\) corresponds to p orbitals, \(l=2\) corresponds to d orbitals, and \(l=3\) corresponds to f orbitals.
Since the question asks for the value of \(l\) that corresponds to p orbitals, identify the value associated with p orbitals from the list above.
Match the given options with the known values: \(l=0\) (s), \(l=1\) (p), \(l=2\) (d), \(l=3\) (f).
Conclude that the correct value of \(l\) for p orbitals is \(l=1\).
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