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What is the basis of long form of period...

What is the basis of long form of periodic table?

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Atomic number.
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Knowledge Check

  • The long form of periodic table has

    A
    Eight horizontal rows and seven vertical columns
    B
    Seven horizontal rows and eighteen vertical columns
    C
    Seven horizontal rows and seven vertical columns
    D
    Eight horizontal rows and eight vertical columns

  • The statemet that is true for the long form of the periodic table is

    A
    It reflects the sequence filling of electrons in the order of sub energy levels s.p,d and f
    B
    tit helps to predict the stable valency states of the elements
    C
    it reflects trend in physical and chemical properties of the elements
    D
    all of the above

  • How many periods and vertical columns are there in the long form of the periodic table?

    A
    8,12
    B
    6,8
    C
    7,18
    D
    6,18