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2. structure of atom — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry2. structure of atom1 Mark
MCQ
The maximum energy is possessed by an electrons, when it is present
  • A
    in nucleus
  • B
    in ground energy state
  • C
    in first excited state
  • ✓
    at infinite distance from the nucleus
✓

Answer

Correct option: D.
at infinite distance from the nucleus
d
As we know that $E_n\, \propto\,\left[-\frac{1}{n^2}\right]$ where $n$ is the number of orbit. Hence, as the value of $n$ increases, energy of the electron also increases. Hence, when $n$ becomes infinite, energy also becomes infinite. Hence, due to this reason maximum energy is possessed by an electron, when it is present at infinite distance from the nucleus.

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