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Structure of At...

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  • Question 1
    4 / -1

    The number of unpaired electrons in Fe3+ ion is

  • Question 2
    4 / -1

  • Question 3
    4 / -1

    The measurement of the electron position if associated with an uncertainty in momentum, which is equal to 1 × 10–18 g cm s– 1 . The uncertainty in electron velocity is, [2008] (mass of an electron is 9 × 10– 28 g)

  • Question 4
    4 / -1

    The electronic configuration of the oxide ion is much most similar to the electronic configuration of the

  • Question 5
    4 / -1

    What is the atomic number of the element with M2+ ion having electronic configuration [Ar] 3d 8 ?

  • Question 6
    4 / -1

    Which of the following has the maximum number of unpaired ' d' electrons ?

  • Question 7
    4 / -1

    What is the electronic configuration of Mn2+ ?

  • Question 8
    4 / -1

    Which is not in accordance to Aufbau principle ?

  • Question 9
    4 / -1

    Cr has electronic configuration as

  • Question 10
    4 / -1

    The atomic numbers of elements X, Y and Z are 19, 21 and 25 respectively. The number of electrons present in the M-shell of these elements follow the order

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