Q42Short answer
Although Zr belongs to 4d and Hf belongs to 5d transition series but it is quite difficult to separate them. Why?
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Hint : Due to lanthanoid contraction, they have almost same size (Zr, 160 pm) and (Hf, 159 pm).
Although Zr belongs to 4d and Hf belongs to 5d transition series but it is quite difficult to separate them. Why?
Hint : Due to lanthanoid contraction, they have almost same size (Zr, 160 pm) and (Hf, 159 pm).