### Quantum Numbers

Posted:

**Sat Oct 19, 2019 1:11 pm**Hi,

Could someone explain to me how many subshells there would be if n=4?

Could someone explain to me how many subshells there would be if n=4?

Created by Dr. Laurence Lavelle

https://lavelle.chem.ucla.edu/forum/

https://lavelle.chem.ucla.edu/forum/viewtopic.php?f=20&t=47997

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Posted: **Sat Oct 19, 2019 1:11 pm**

Hi,

Could someone explain to me how many subshells there would be if n=4?

Could someone explain to me how many subshells there would be if n=4?

Posted: **Sat Oct 19, 2019 1:15 pm**

There are four subshells. Since n=4, l can only be four different values which are 0,1,2, and 3 which correspond to s, p, d, and f.

Posted: **Sat Oct 19, 2019 1:15 pm**

If n=4, there would be four subshells: s, p, d, f.

Posted: **Sat Oct 19, 2019 2:30 pm**

Remember, the angular momentum quantum number, l, determines the subshell. n can have integer values greater than 0, in this case n=4 is given.

l can have integer values from 0 to n-1, so if n=4, l can = 0,1,2,3.

So, in a ground state there are a possible of four subshells: l=0 would be the s subshell, l=1 would be the p subshell, l=2 would be the d subshell, and l=3 would be the f subshell.

l can have integer values from 0 to n-1, so if n=4, l can = 0,1,2,3.

So, in a ground state there are a possible of four subshells: l=0 would be the s subshell, l=1 would be the p subshell, l=2 would be the d subshell, and l=3 would be the f subshell.