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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 statement that is not correct for the periodic classification of elements is
  • A
    The properties of elements are the periodic functions of their atomic numbers
  • B
    Non-metallic elements are lesser in number than metallic elements
  • ✓
    The first ionisation energies along a period do not vary in a regular manner with increase in atomic number
  • D
    For transition elements the $d$-sub-shells are filled with electrons monotonically with increase in atomic number
✓

Answer

Correct option: C.
The first ionisation energies along a period do not vary in a regular manner with increase in atomic number
c
It’s Obvious

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