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4. d and f- block elements — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistry4. d and f- block elements1 Mark
MCQ
A reduction in atomic size with increase in atomic number is a characteristic of elements of
  • A
    High atomic masses
  • B
    $d-$ block
  • ✓
    $f -$ block
  • D
    Radioactive series
✓

Answer

Correct option: C.
$f -$ block
c
(c)Lanthanide contraction takes place.

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