Chemistry - Quantum Mechanics
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13 Terms
what does the principal quantum number describe (n)
refers to energy level/row on periodic table, 2n² is max electrons for each energy level
whats the second quantum number called (l)
angular momentum quantum number
what does the angular momentum quantum number describe
describes the shape of the orbital according to the spdf sublevels. l = n-1
angular momentum quantum number: s
0
angular momentum quantum number: p
1
angular momentum quantum number: 2
d
angular momentum quantum number: 3
f
third quantum number (ml) also called…
magnetic quantum number
what does the magnetic quantum number describe
indicates its direction in space by indicating which orbital it is in
what is the range of ml quantities according to l
-l - +l
fourth quantum number (ms) also called…
spin quantum number
what does the spin quantum number describe
direction of the spin of an electron in an orbital, +1/2 for clockwise -1/2 for counterclockwise
no 2 electrons have the same 4 quantum numbers! this is…
pauli exclusion
Note 
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