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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 incorrect statement is / are
  • A
    Mendeleev's periodic law was based on atomic number of the element
  • B
    Effective nuclear charge ($z_{eff}$) = atomic mass -shielding constant
  • C
    Mulliken's value of electronegativity of an element is about $2.8$ times lesser than the Pauling scale
  • ✓
    All of these
✓

Answer

Correct option: D.
All of these
d

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