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Structure of At...

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  • Question 1
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    In the atomic spectrum of hydrogen, the spectral lines pertaining to electronic transition of n = 4 to n = 2 refers to

  • Question 2
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    When electronic transition occurs from higher energy state to a lower energy state with energy difference equal to ΔE electron volts, the wavelength of line emitted is approximately equal to

  • Question 3
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    The first line in the Balmer series in the H atom will have the frequency

  • Question 4
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    The orbital configuration of 24Cr is 3d54s1. The number of unpaired electrons in is

  • Question 5
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    The maximum number of electrons in s, p and d – subshells are

  • Question 6
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  • Question 7
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  • Question 8
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    A near U.V. photon of 300 nm is absorbed by a gas and then remitted as two photons. One photon is red with wavelength760 nm. Hence wavelength of the second photon is

  • Question 9
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    A certain metal when irradiated to light ( = 3.2 × 1016 Hz) emits photoelectrons with twice kinetic energy as did photo electrons when the same metal is irradiated by light ( = 2.0 × 1016 Hz). The of metal

  • Question 10
    4 / -1

    The ratio of the radil of the first three Bohr orbit in H atom is

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