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Quantum numbers

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by

Richard Datwyler

on 20 March 2017

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Transcript of Quantum numbers

Quantum numbers
There are four quantum numbers
spin quantum number
magnetic quantum number
orbital quantum number
Principle quantum number
this has to do with energy and goes from : n=1,2,3,.....
n
l
as guessed has to do with orbits, and subshells, and angular momentum
l=0,1,2,....n-1
m
m
s
l
the effects of magnetic fields come in to play here, it also gives the quantized direction of angular momentum
m = -l,...-2,-1,0,1,2...l
l
m
s
fine structure effect we call spin up and spin down
= +1/2 , - 1/2
How many directions could it be pointing?
What is the angular momentum for this state?
What values of quantum numbers are available if l = 2?
5
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