Deuterium and Tritium (both gas) are isotopes of Hydrogen and are used in H-bombs. Could be called DTRM and TRTM. When under pressure together, they release energy, sort of like Plutonium. http://www.worsleyschool.net/science/files/nuclear/bomb.html to see what I'm talking about. (scroll down to "They Hydrogen Bomb" section) They should also be flammable. Would be great to see on TPT
oh i think i know how we could do it dueterium could let out alot of neutrons lava pressure etc when it touches plutonium. and tritium reacts when it touches uranium so when plutonium makes the uranium from deuterium it will set off the tritium!