reactive
reactive metals react with water and acids,but the non reactive doesnt. dude that isn't a proper answer
Charcoal react, for example, with oxygen: this is the process of burning (oxydation).
As mercury is below hydrogen in the reactivity series of metals,it is not reactive.. but if u mix it with oxygen it blows up and makes a big BOOOOOOOOM!
Beryllium is not so reactive; the electronegativity after Pauling scale is 1,57.