JEE Main Chemistry question

Select the incorrect statement about transition elements.

(A)The last electron enters in the -orbital
(B)Their properties are in between and -block elements
(C)Scandium is the transition element with smallest atomic radiiCorrect
(D)Their common oxidation state is

Answer: (C)

Solution

Atomic radius generally decreases across the 3d series from Sc toward the middle/later elements (due to increasing nuclear charge with poor -shielding) before slightly rising again near Cu/Zn; Sc, being the very first member, actually has one of the largest atomic radii in

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Question ID VK-147408