Chemistry / Unit 5 Chem 0825 short lesson, about 20 seconds
The Angular Momentum Quantum Number, l
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The idea
The angular momentum quantum number, l, ranges from 0 to n − 1 within a shell, setting the subshell that sets shape.
In practice
Within n = 3, l can be 0, 1, or 2, giving the 3s, 3p, and 3d subshells.
Where people slip
The values of l depend on n — a shell never has a subshell with l reaching or exceeding n.
Your place on the trail
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