Because they are all alkali-metals and alkali -metals are known for being very reactive.
The most reactive chemical elements are in the first group of the periodic table of elements.
Group 1 elements are more reactive than that of group 2 elements.
group 1 elements are stored in oil because they are highly reactive elements.
Group 1 (metals) and Group 17 (non-metals).
Fluorine (F) is the most reactive element. It can react with almost anything.
Noble gases (group 18) are the almost nonreactive elements. Group 1 elements are the most reactive metals. Group 17 elements are the most reactive non-metals.
less reactive.beacuse group-1 elements are the most reactive elements.
it is caesium.
yes the most chemically reactive elements are in group 1
The elements in group 1 become more reactive as you go down the group.
The elements in Group 1 of the Periodic Table are highly reactive in water, and, only slightly less reactive in Oxygen. Group 2 elements are also quite reactive in Oxygen, but not quite as reactive as those elements in Group 1.
Group 1 elements are the most reactive among metals, followed by group 2 elements.
The most reactive chemical elements are in the first group of the periodic table of elements.
Group 1 elements are more reactive than that of group 2 elements.
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.
Francium is considered the most reactive of the group 1 elements. This is because it is the largest of all elements in group 1, therefore takes the least amount of energy to lose an electron (Group 1 elements react by losing electrons.)
The halogens (group 9) and the earth metals (group 1)