D-And F-Block Elements Ques 408

Question: Which of the following is the correct sequence of atomic weights of given elements

[Pb. CET 2002]

Options:

A) $ Fe>Co>Ni $

B) $ Ni>Co>Fe $

C) $ Co>Ni>Fe $

D) $ Fe>Ni>Co $

Show Answer

Answer:

Correct Answer: C

Solution:

The atomic weight of $ Co,Ni\ \text{and }Fe $ are 58.90, 58.60, 55.85 respectively.

Therefore $ Co>Ni>Fe $ is the correct sequence of atomic weight.



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