Questions
The lanthanoid contraction is responsible for the fact that
(Atomic numbers: Zr = 40, Y = 39, Nb = 41, Hf = 72, Zn = 30)
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a
Zr and Y have about the same radius
b
Zr and Nb have similar oxidation state
c
Zr and Hf have about the same radius
d
Zr and Zn have the same oxidation state
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Correct option is C
A regular decreases in the size of the atoms and ions in lanthanide series from La3+ to Lu3+ is called lanthanide contraction. The similarity in size of the atoms of Zr and Hf is due to the lanthanide contraction.Similar Questions
Which is isoelectronic with
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