alleryAtomic radii within a single transition series vary by an amount:
AQuite large
BBeyond bound
CExactly zero
DQuite small
Answer & Solution
Correct answer: D. Quite small
1. Added electrons go into an inner d subshell.
2. They shield the outer electrons fairly well.
3. So the variation within a series is quite small.
_Source: syllabus Chemistry Part I, Chapter 8, The d- and f-Block Elements._
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