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# Consider the following statement, which of the following choices is correct?

(A) Zinc is not an transition element

(B) Any element with incompletely filled d-orbital is called a transition element.

$\begin{array}{1 1}(a)\;A\;is\;true,B\;is\;true&(b)\;\;A\;is\;false,B\;is\;true\\(c)\;Both\;A\;is\;false,B\;is\;false&(d)\;\;A\;is\;false,B\;is\;true\end{array}$

Answer: A and B are both true.
Zinc has a completely filled d orbital in both its ground state as well as in oxidized state. Therefore its not considered a transition element.
The IUPAC definition defines a transition metal as "an element whose atom has a partially filled d sub-shell, or which can give rise to cations with an incomplete d sub-shell"
edited Jul 31, 2014