Quantum Numbers
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What are the 4 quantum numbers?
n, l , ml, ms
n (the principle quantum #)
it is any integer; 1, 2, 3, 4. It tells us what shell the electron is in and how far it is from the nucleus
Is an electron with n=4 or n=7 closer to the nucleus?
n=4
l (the azimuthal quantum #)
tells us what kind of orbital (s, p, d, or f) the electron is in. This number can ONLY be 0, 1, 2, or 3 (s, p, d, or f)
What type of orbitals does the numbering (0, 1, 2, or 3) of the l or azimuthal quantum # refer to?
0=s 1=p 2=d 3=f
ml (the magnetic quantum #)
this number can be any integer from -l to +l, including zero. (talking about the l or azimuthal #). This # tells us which one of the p-orbitals, d-orbitals, or f-orbitals the electron is in
each orbital can hold up to how many e-?
2
ms (the spin quantum #)
Is equal to - or + 1/2. So for any two e- occupying the same orbital, one is assigned a +1/2 spin and the other a -1/2 spin.
Can n=o? (primary quantum number)
no
If l=2,can you have ml= -3?
no. only -2.-1,0,+1,+2
D orbital row numbering is always minus ____?
minus 1. So even though the D block starts on row 4, it’d be numbered starting at 3d
F orbital row numbering is always minus _____?
minus 2. Even though the F block starts on row 6, it’s be number as 4f