## ml

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Maria Solis Disc 1G
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Joined: Fri Sep 28, 2018 12:27 am
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### ml

On Friday's lecture Dr. Lavelle kept mentiong ml, can someone please explain what that is, as I am majorly lost. Also instead of doing a lowercase l can i use a cursive l, since one of the reasons i got lost was because i kept confusing the l with a 1.

305008749
Posts: 31
Joined: Fri Sep 28, 2018 12:27 am

### Re: ml

I am pretty sure you can use a lowercase l. I do that as well because it can be quite confusing. I'm not exactly sure how to explain what ml is but from what I understand, it just tells you the subshell's (which is determined by l) orbitals orientation. So in the example he gave us, if the subshell is in the p orbital, then ml can be px, py, or pz.

davidbakalov_lec2_2L
Posts: 61
Joined: Fri Sep 28, 2018 12:23 am

### Re: ml

ml is the magnetic quantum number. It serves to distinguish the individual orbitals in a sub shell (l). ml can take the values from -l to l. So if l = 1, ml = -1, 0, or 1. l = 1 signifies the p-orbital, so these 3 numbers can also be written as px, py, and pz. This means that there are three orbitals in a p sub shell which can hold a total of 6 electrons.

Jchellis 1I
Posts: 61
Joined: Fri Sep 28, 2018 12:15 am

### Re: ml

I also have this problem with the different v's that all have different meanings. Is there any way you write yours so you don't mess up?

Diana Sandoval 1K
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Joined: Fri Sep 28, 2018 12:25 am
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### Re: ml

You can definitely use a cursive l, that's what I use because I too confuse it with a 1. But for ml it determines the number of orbitals and the orientation within a subshell. Ml is dependent on l. So for example if l=2, ml would be -2,-1,0,1,2. I don't know if this is any help.

Nell Mitchell 1E
Posts: 31
Joined: Fri Sep 28, 2018 12:16 am

### Re: ml

Jchellis 1I wrote:I also have this problem with the different v's that all have different meanings. Is there any way you write yours so you don't mess up?

For the "v" for frequency (actually greek letter nu) my TA wrote it with a line over the top in his calculations and ever since I started doing that it's been a lot less confusing!

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