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Atoms and Nucle...

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  • Question 1
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    An ionic atom equivalent to hydrogen atom has wavelength equal to 1/4 of the wavelengths of hydrogen lines. The ion will be

  • Question 2
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  • Question 3
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    Hydrogen atom emits blue light when it changes from n = 4 energy level to the n = 2 level. Which colour of light would the atom emit when it changes from the n = 5 level to the n = 2 level?

  • Question 4
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  • Question 5
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    The splitting of line into groups under the effect of magnetic field is called

  • Question 6
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    The first line of Balmer series has wavelength 6563 Å. What will be the wavelength of the first member of Lyman series?

  • Question 7
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    The wavelength of Lyman series isis

  • Question 8
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    When hydrogen atom is in its first excited level, its radius is ...its ground state radius

  • Question 9
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    Hydrogen atom excites energy level from fundamental state to n = 3. Number of spectrum lines according to Bohr, is

  • Question 10
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    Number of spectral lines in hydrogen atom is

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