There are many reactive elements. They show up more on the upper left of the Periodic Table. Some of these are plutonium, uranium, Mercury and lead.
It is as reactive as indium. Just kidding, it is reactive. Hoe reactive, more reactive than silver, but not as reactive as tin.
reactive
Hydrogen IS reactive
helium is non reactive.
Cerium is reactive but not highly reactive.
reactive.
it is reactive
fluorine is the most reactive
Manganese is not very reactive; the electronegativity is 1,55.
Reactive
no it is not reactive
reactive