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3. Classification of elements and periodicity in properties — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry3. Classification of elements and periodicity in properties1 Mark
MCQ
The most importasnt active step in the development of periodic table was taken by
  • ✓
    Mendeleef
  • B
    Dalton
  • C
    Avogadro
  • D
    Cavendish
✓

Answer

Correct option: A.
Mendeleef
a
The most important active step in the development of periodic table was taken by Mendeleev since though others have also made significant contributions towards classification of elements, he elevated the progress made in that direction much more than anyone else.

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