Chemistry · Transition Elements: General introduction, electronic configuration, occurrence and characteristics
The properties of and are same because
The properties of \( Z r \) and \( H f \) are same because
- A. they have similar radii
- B. they belong to d-b;ock
- C. they have same valence electrons
- D. None of the above
Step-by-step solution
Zirconium and hafnium have nearly identical chemical and physical properties primarily due to lanthanide contraction, which causes their atomic radii to be very similar. This similar size leads to comparable bonding and reactivity, despite differences in atomic number. While both are d-block elements and have the same number of valence electrons (Group 4), these factors alone do not account for the extreme similarity; the key factor is the near-identical radii.
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