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Write two achievements of Mendeleev's pe...

Write two achievements of Mendeleev's periodic table.

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Achievements of Mendeleev.s Periodic Law :
(i) It could classify all the elements discovered at that time.
(ii) It helped in discovery of new elements.
(iii) It helped in correction of atomic mass of some of the elements.
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Knowledge Check

  • Mendeleev's periodic law is based on

    A
    atomic number
    B
    atomic weight
    C
    number of neutrons
    D
    none of these
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