Multi-Electron Configurations and Orbital Diagrams
A neutron mov...
Question
A neutron moving with an energy of 20.4 ev collides with a stationary hydrogen atom (MP=mn), which is in ground state. Then due to impact the hydrogen atom
A
gets ionized
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B
gets excited to first excited state
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C
gets excited to second excited state
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D
neither gets excited or nor gets ionized
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Solution
The correct option is Bgets excited to first excited state 12mU2=12(2m)V2+ΔEmU=2mV;Ki=2ΔEΔE=10.2eV ∴hydrogen atom gets exited to = 2