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Which of the following element is not a transition element?

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in Chemistry – Class 12 by (188k points)
Which of the following element is not a transition element?

(a) Fe

(b) Mn

(c) Zn

(d) Ag

This question was addressed to me during an interview.

The question is from Position of the Periodic Table topic in portion D and F-Block Elements of Chemistry – Class 12

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Best answer
The correct choice is (c) Zn

Best explanation: All transition elements are d-block elements, but all d-block elements are not transition elements. Zinc has the electronic configuration [Ar] 3d^104s^2, and the configuration of the Zn^2+ ion is [Ar] 3d^10. Thus, both the element and its only known stable ion have completely filled d-orbitals. Also, the metal does not exhibit any variable valency or multiple oxidation states in compound formation.

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