## Principle quantum number and orbital angular momentum quantum number

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Ellie Tsang 1I
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### Principle quantum number and orbital angular momentum quantum number

In the textbook, it says that l = 0,1,2,..., n - 1. For question 2.27, n = 5 and l =2. I don’t understand how l can equal 2. Can someone clarify?

Hope_Pham_1G
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Joined: Fri Apr 06, 2018 11:04 am

### Re: Principle quantum number and orbital angular momentum quantum number

l can equal values from 0 to n-1. That means l can equal 0, 1, 2, 3, and 4 but NOT 5 or higher for this homework problem. l=2 refers to the electron(s) in a specific subshell.

Mario Reyes 1C
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Joined: Fri Apr 06, 2018 11:04 am

### Re: Principle quantum number and orbital angular momentum quantum number

l CAN equal 0, 1, 2 ,3 ,and 4. However, this doesn't mean that l will equal all of those values. In this case they tell us l=2 which indicates that electrons are in the p orbital.

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