Atomic StructureHard
Question
A hydrogen - like atom has ground state binding energy 122.4 eV. Then :
Options
A.its atomic number is 3
B.a photon of 90 eV can excite it to a higher state
C.a 80 eV photon cannot excite it to a higher state
D.None
Solution
Ground state binding energy = 13.6 Z2 = 122.4 eV. ∴ Z = 3.
1st excitation energy = 10.2 Z2 = 91.8 eV. ∴ an 80 eV electron cannot excite it to a higher state.
1st excitation energy = 10.2 Z2 = 91.8 eV. ∴ an 80 eV electron cannot excite it to a higher state.
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