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Atoms and Nucle...

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  • Question 1
    4 / -1

    Which state of triply ionised beryllium (Be3+) has the same orbital radius as that of the ground state of hydrogen?

  • Question 2
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    Excitation energy of a hydrogen like atom in its first excitation state is 40.8 eV. Energy needed to remove the electron from the ion in ground state is

  • Question 3
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    Mercury vapour lamp gives

  • Question 4
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    Electrons in the atom are held to the nucleus by

  • Question 5
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    In hydrogen atom, the electron is moving round the nucleus 2.18 × 106 ms-1 in an orbit of radius 0.528 Å. The acceleration of the electron is

  • Question 6
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    The ionisation energy of 10 times ionised sodium atom is

  • Question 7
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  • Question 8
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    Bohr's atom model assumes

  • Question 9
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    Wavelength of first line in Lyman series is λ. The wavelength of first line in Balmer series is

  • Question 10
    4 / -1

    What is the maximum wavelength of light emitted in Lyman series by hydrogen atom?

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