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Structure of At...

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  • Question 1
    4 / -1

    Principle Quantum number describes?

  • Question 2
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    The atoms of different isotopes of the same element differ from each other in the number of:

  • Question 3
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    The radius of the nucleus of an atom is approximately:

  • Question 4
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    An element has 18 electrons, and 20. neutrons. Its charge is -2. What is its mass number?

  • Question 5
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    Which of the following statements is not correct about the characteristics of cathode rays?

  • Question 6
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    Which model describes that there is no change in the energy of electrons as long as they keep revolving in the same energy level and atoms remains stable?

     

  • Question 7
    4 / -1

    The number of radial nodes for 3p orbital is:

  • Question 8
    4 / -1

    Atomic mass of an element is equal to the sum of?

  • Question 9
    4 / -1

    Thomson’s plum pudding model explained:

  • Question 10
    4 / -1

    Which of the following conclusions could not be derived from Rutherford’s α -particle scattering experiment?

  • Question 11
    4 / -1

    The charge on electron was determined by:

  • Question 12
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    The nature of positive rays depends on?

  • Question 13
    4 / -1

    The nucleus of a tritium atom, 3H, contains

  • Question 14
    4 / -1

    Which of the following is true about electron?

  • Question 15
    4 / -1

    Neutron is a fundamental particle which carries?

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