Chemistry - Complete d-block Question with Solution | TestHub

$$\begin{array}{rl}\mathrm{Fe}(Z=26);\text{ Atomic weight }& =55.85\\ \mathrm{Co}(Z=27);\text{ Atomic weight }& =58.93\\ \mathrm{Ni}(Z=28);\text{ Atomic weight }& =58.69\end{array}$$ The correct order of atomic weights is $$\mathrm{CO}>\mathrm{Ni}>\mathrm{Fe}$$