Question

Zn is not considered as a transition element.
Explain this...?

Answer 1

Zinc has the electronic configuration [Ar]3d10 4s2, and the configuration of the Zn (2+) ion is [Ar]3d10.

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.

Again, it forms only colourless salts like the 's' and 'p' block elements.

Therefore, zinc is not always considered a transition element. But, there are also authors who treat zinc, cadmium and mercury as the last elements in the three series of transition elements.



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