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Question: Answered & Verified by Expert
Which pair of elements with the given atomic numbers is expected to have similar properties?
ChemistryClassification of Elements and Periodicity in PropertiesJEE Main
Options:
  • A
    40,72
  • B
    20,36
  • C
    10,28
  • D
    11,12
Solution:
1025 Upvotes Verified Answer
The correct answer is:
40,72
$\mathrm{Zr}(40), \mathrm{Hf}(72)$ have similar properties as they belong to same group and have same valence shell electronic configuration.

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