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Atomic Structur...

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  • Question 1
    1 / -0

    Mass of a neutron is

  • Question 2
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    Which one of the following may contain 11 neutrons, 10 electrons and 9 protons?

  • Question 3
    1 / -0

    Which of the following symbols represents a species containing 11 protons, 12 neutrons and 10 electrons?

  • Question 4
    1 / -0

    Atomic weight of a substance is equal to

  • Question 5
    1 / -0

    If the tables of atomic masses were established with the oxygen atom, which was assigned the value of 100, then the atomic mass of the carbon atom would be approximately

  • Question 6
    1 / -0

    How many neutrons are there in the chlorine element whose atomic mass is 35.5 u?

  • Question 7
    1 / -0

    The electronic configurations of elements A, B, C and D are (2, 8, 1), (2, 8, 2), (2, 8, 6) and (2, 8, 7) respectively. Which of these can make an ion with two negative charges?

  • Question 8
    1 / -0

    Consider the following.
    I. ZnSO4
    II. HNO2
    III. H2SO4
    IV. CuSO4

    Which of the above contains univalent cations?

  • Question 9
    1 / -0

    What is the feature of atomic spectra?

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