Rubidium and caesium
1 mark · EasyState the trend in reactivity as you go down Group 1 in the Periodic Table.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
The reactivity increases as you go down Group 1.
Also accept: Reactivity increases down the group.; Alkali metals become more reactive further down Group 1.; They get more reactive as you go down Group 1.
Common mistakes: Reactivity decreases down the group.; Reactivity stays the same.
Show mark scheme and worked solution
Marking points
B1 · 1 mark · States clearly that reactivity increases down Group 1.
Worked solution
As you go down Group 1, the reactivity of the alkali metals increases.