Question No. 11
• Which among the following are twin
elements?
Answer
A. Cr-Cu
B.Ni-Co
C. Hf-Zr
D. Na-K
Answers
Answered by
0
Answer for this question is c)Hr-Zr
Answered by
0
are twin elements. (Option C)
- Chemical twins are the elements that have the same chemical properties which can be due to their same atomic radii.
- Usually they are elements lying in periods 5 and 6 or and series.
- Since the atomic size of is the same, they are said to be twin elements.
- They are twin due to lanthanoid contraction.
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