If I recall correctly, it's because they don't have any electrons in their atoms. Atoms react in order to get a full set of 8 electrons, and the less electrons an atom has, the more likely they are to react.
Group 1, the Alkali Metals, which are extremely reactive.
yes the most chemically reactive elements are in group 1
The most reactive goup in the metals is the Alkali metals (Group I) The most reactive non-metal group is Group 17 or VIIA) the Halogens. It is difficult to say which of the two groups is more reactive. Chemists will say that Flourine is the most reactive element. Note that Group 18 is the least reactive, most stable.
group 1 and group 17 are the most reactive groups
Francium (Fr) is the most reactive metal.
The elements in group 1 become more reactive as you go down the group.
group 1
less reactive.beacuse group-1 elements are the most reactive elements.
in the Periodic Table it is the most reactive metals!
it is caesium.
Francium.
The most reactive metals are in the group 1 of the Periodic Table - the alkali metals.