Which of the following statements is INCORRECT for pair of elements Zr – InterviewSolution

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1.	Which of the following statements is INCORRECT for pair of elements Zr-Hf?
Answer» Both possess same NUMBER of valence electrons. Both have identcial atomic SIZES. Both have almost identical ionic RADII. Both of these belong to same period of periodic table. Solution :These are chemical twins Zr belongs to 5th period and 4TH group. Hf belongs to 6th period and 4th group.

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