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On the basis of quantum numbers, justify...

On the basis of quantum numbers, justify that the sixth period of the periodic table should have 32 elements.

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The sixth period corresponds to sixth shell. The orbitals present in this shell are 6s, 4f, 5p and 6d. The maximum number of electrons which can be present in these sub-shell is 2 + 14 + 6 + 10 - 32. Since the number of elements in a period corresponds to the number of electrons in the shells, the sixth period should have a maximum of 32 elements.
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Knowledge Check

  • The shortest period in the periodic table contains ……….. Elements.

    A
    18
    B
    8
    C
    2
    D
    32

  • The first period of the modern periodic table has __________ elements .

    A
    1
    B
    2
    C
    3
    D
    8

  • The largest atom in the 2^(nd) period of the periodic table is :

    A
    Li
    B
    Be
    C
    F
    D
    Ne

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