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2.
1927DavisssonGermerNi
λ=h/mυ=h/p
x · p ≥ h/4π
x 0.01 cm,
∴
2: , m = 9.11 10-31 Kg, r = 10-10 mx10-11 m
∴m
s, p, d, f…... ()
l ψ
m
ψ
0 1 2 3 …
: n =2 l =0 m =0 2s
n =3 l =1 m =0 3pz
n =3 l =2 m =0 3dz2