Q17. Zr and Hf have almost equal
atomic and ionic radii because of
(a) lanthanoid contraction
(b) diagonal relationship
(c) actinoid contraction
(d) belonging to the same group
Answers
Answered by
4
Answer:
nhi voh kal site nhi thi pad rahi thi
Answered by
0
Answer:
Poor shielding effect takes place in 4f electrons . Due to this 6s electrons get attracted towards the nucleus and the size gets decreased . As , due to lanthanide contraction size of Hafnium is almost getting equal with Zirconium . Hence the correct option is C.
Explanation:
option C
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