pottasium
Fluorine is the most reactive non-metal.
caesium is the most reactive non-radioactive metal and Florine is the most reactive non-metal, but francium is the most reactive, radioactive metal
Metals which can easily loose electron are most reactive. They are present in group-1.
fluorine is the most reactive non metal in the periodic table.
Francium (Fr) is the most reactive metal.
Lithium is the most reactive metal found.
Cesium is the most chemically reactive metal.
Potassium is not the most reactive, Francium is.
Aluminum is pretty reactive, but it is nowhere near the most reactive.
Francium is the most reactive metal and fluorine the most reactive nonmetal.
Francium is the most reactive metal.
This metal is gold.