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Summarize the Bohr's Model of an atom....

Summarize the Bohr's Model of an atom.

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Bohr's Model of an atom, the postulates are (1) Electrons revolve around the nucleus 'of an atom in a certain definite path called orbit or stationary state of shell.
(2) The shells are having different energy levels denoted as K, L, M, N ...
(3) As long as th~ electron remains in an orbit, they neither absorb nor emit energy.
(4) The electron can move only in that orbit in which angular momentum is quantized, i.e., the angular momentum of the electron is an integral multiple of `h/(2pi)`
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Describe Bohr's model of the atom.

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Knowledge Check

  • Bohr's model can explain

    A
    the spectrum of hydrogen atom only
    B
    the spectrum of atom or ion containing one electron only
    C
    the spectrum of hydrogen molecule
    D
    the solar spectrum.
  • He^(+) ions are excited to respective first excited states. Subsequently, H-atoms transfer their total excitation Energy to Het jons collisions). Assume that the Bohr model of atom is exactly valid. The wavelength of light emitted in the visible region by He^(+) ions after collisions with H atoms is

    A
    `6.5 xx 10^(-7)m`
    B
    `5.6 xx 10^(-7)m`
    C
    `4.8 xx 10^(-7)m`
    D
    `4.0 xx 10^(-7)m`
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    On the basis of Rutherford's model of an atom, which subatomic particle is present in the nucleus of an atom ?

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