Q. Which of the following is the correct sequence of atomic weights of given elements?
A) $Co > Ni > Fe$
B) $Fe > Co > NI$
C) $Fe > Ni > Co$
D) $Ni > Co > Fe$
Explanation
(a)
The atomic weight of Co, Ni and Fe are 59.90, 58.60, 55.85 respectively. Therefore, Co > Ni > Fe is the correct sequence of atomic weights
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.