Question

unit 5 comprehensive quiz l
which element listed has the greatest metal reactivity?
○ francium (fr)
○ lithium (li)
○ scandium (sc)
○ nickel (ni)

Explanation:

Metals' reactivity increases down a group in the periodic table. Francium (\(Fr\)) is in Group 1 (alkali metals), Lithium (\(Li\)) is also in Group 1 but higher up. Scandium (\(Sc\)) is a transition metal and Nickel (\(Ni\)) is also a transition metal. Alkali metals are more reactive than transition metals. Among the alkali metals here (\(Fr\) and \(Li\)), \(Fr\) is lower in the group, so it has the greatest reactivity.

Answer:

Francium (Fr)