# Show the permissible values of l and m

1. Apr 15, 2010

### Tyyoung

1. The problem statement, all variables and given/known data
Show the permissible values of l and m for;
a) n=1
b) n=2
c) n=3

2. Relevant equations

I'm not really sure what they mean by permissible values, I would greatly appreciate it if someone could explain this to me and help me get started. thank you

3. The attempt at a solution

2. Apr 15, 2010

### mgb_phys

Re: Chemistry

3. Apr 15, 2010

### Tyyoung

Re: Chemistry

n is the primary quantum number, l is the secondary quantum nuber and m is the magnetic quantum number.

if n=1 then you have 1 sublevel you use the equation n^2 to find out how many orbitals it has. For example, if n=2 then sub it into the equation n^2 so (2)^2 = 4, therefore it has 4 orbitals. Umm lol This information is only semi relevant I beleive I'm not really understanding the question itself so it makes it difficult to relate information to it. There isn't a direct formula that I know of that is related to it I think it is a question that you have to infer but once again I don't exaclty understand what the question is asking.

4. Apr 15, 2010

### Staff: Mentor

Re: Chemistry

It asks what values can l & m take for a given n.

Let's say... if n=4, is it possible to have l=7?

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