1.

The binding energy of the valance electron in a `Li` atom in the states `2S` and `2P` is equal to `5.39` and `3.54 eV` respectively. Find the Rydberg corrections for `s` and `p` terms of the atom.

Answer» From the Rydberg formula we write
`E_(n)= -( ħR)/((n+alpha_(l)^(2))`
we use ` ħR= 13.6eV`. Then for n= 2 state
`5.39= -(13.6)/((2+alpha_(0))^(2)), l=0(S)` state
`alpha_(0)~~ -0.41`
for `p` state
`3.54= -(13.6)/((2+alpha_(1))^(2))`
`alpha_(1)=-0.039`.


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