Which pair of elements with the given atomic numbers is expected … - Vidyadip

MCQ

Which pair of elements with the given atomic numbers is expected to have similar properties?

✓
$40,72$
B
$20,36$
C
$10,28$
D
$11,12$

✓

Answer

Correct option: A.

$40,72$

a
$Zr\,(40),\,Hf\,(72)$ have similar properties as they belong to same group and have same valence shell electronic configuration

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