Question:
Imagine removing one electron from He4 and He3. Their energy levels, as worked out on the basis of Bohr model will be very close. Explain why.
Solution:
The energies of He4 and He3 will be very close according to the Bohr model because both have 1 electron as in case of the hydrogen atom and the nucleus is 4 times
heavier than the H-atoms. Therefore, the stability of these atoms remains close to the H atom and so is their energy levels.
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