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.
