MCQ
Hydrogen atom does not emit $X-$ rays because
  • Its energy levels are too close to each other
  • B
    Its energy levels are too apart
  • C
    It is too small in size
  • D
    It has a single electron

Answer

Correct option: A.
Its energy levels are too close to each other
a
(a) For hydrogen atom the energy levels in it are very close to each other because of which the transition of electron emits high energy radiations having short wavelengths. Therefore for shortest distance i.e. Lyman series the wavelength obtain in ultra-violet region. since, $\mathrm{X}$ -rays are long radiation photons, hydrogen atom does not emit X-rays.

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