Question

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5 Iack SP S 18. Zirconium and hafnium occur together in nature. It is ever so difficult to obtain the pure ele- ments. Why do you think this is so? a.

Answer 1

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18. a Because Zirconium and similar_..chemical and Hafnium physical have almost properties. Physical properties are similar because almost identical abomic size, this lanthanoid contraction they due have to is Chemical properties are similar because zr and Hf belong to the same group of the periodic table ie they have similar "outer most electronic configuration b. zirconium Hafnium ignot ignot is is white colour solid but while silvery in appearance. Hafnium_ignatis havier than_Zirconium ignot. because density of Hafnium is larger than the density of Zirconium. If you take some size ignot. I