The following metals are flammable:
Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs), Magnesium (Mg)
Come on people, I was stoned during high school chemistry too, but at least I woke up for the exams.
Of course metal burns. Go grab a piece of steel wool and a match.
Anyway dude said "meatal". I don't know what that is but maybe it doesn't burn.