The dand fblock elements - Result Question 73
####73. Because of lanthanoid contraction, which of the following pairs of elements have nearly same atomic radii? (Numbers in the parenthesis are atomic numbers).
[2015]
(a)
(b)
(c)
(d)
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Solution:
- (b)
and are in the same group
(4). Because of lanthanoid contraction, they have nearly same atomic radii.