Alkali metals (group 1) and the Halogens (group 17)
Yes, fluorine is the most reactive element on the periodic table.
This element is francium in the first group of periodic table.
yes
group 1
florine
i have know idea but i think
Fluorine (F), element number 9
Potassium (K) is an element. It is available on the periodic table of elements.
No. They are the least because their energy levels are full.
As you move left on the periodic table, the elements get more reactive and as you move down the periodic table. Using that thinking the most reactive elements are the Alkali Earth Metals (column 1) and the most reactive element is Francium. The least reactive are the noble gases in the last column- Helium, Neon, Argon etc..
The last element in each period is a noble element. It is non-reactive.
Fluorine is the most reactive non metal.Caesium is most reactive metal in the table.Fluorine has atomic number 9.