Why is zinc not regarded as a typical transition element?
Correct answer A. Neither the atom nor its only common ion, Zn²⁺, has a partially filled d subshell
Explanation
A transition element forms at least one stable ion with an incomplete d subshell. Zinc is 3d¹⁰4s² and Zn²⁺ is 3d¹⁰, so its d subshell is always full.
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