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

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry3. Classification of elements and periodicity in properties1 Mark
MCQ
All the elements in a group in the periodic table have the same
  • A
    Atomic number
  • B
    Electronic configuration
  • C
    Atomic weight
  • ✓
    Number of electrons in the outermost shell or number of electrons for bonding
✓

Answer

Correct option: D.
Number of electrons in the outermost shell or number of electrons for bonding
d
Modern periodic table is compiled on the basis of atomic number of element. Hence, elements of each group or family have same number of electrons in their outermost or valence shell.

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