QUESTION
The group of metals Fe, Co, Ni may best called as..
transition metals
main group metals
alkali metals
rare metals
ANSWER
Correct Option: Option A,
More from Science/Tech transition metals
In chemistry, the term transition metal has three possible definitions: The IUPAC definition defines a transition metal as "an element whose atom has a partially filled d sub-shell, or which can give rise to cations with an incomplete d sub-shell".