The second and third row elements of transition metals resemble each other much more than…
Chemistry · Class 12 · CBSE — The d- and f-Block Elements
The second and third row elements of transition metals resemble each other much more than they resemble the first row because of
- lanthanoid contraction which results in almost same radii of second and third row metals
- diagonal relationship between second and third row elements
- similar ionisation enthalpy of second and third row elements
- similar oxidation states of second and third row metals.
Answer
(A) lanthanoid contraction which results in almost same radii of second and third row metals
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