These are supposedly invincible elements that can be easily destroyed with the new 'BOMB' element:
Black Hole White Hole Void Bizzare Love and Lol (Must be exposed to bomb about 5 times very rapidly in order to completely destroy and prevent reappearance) Neutrons Photons Thunder All GoL elements. Any elements not listed that Bomb destroys and are invincible are because I don't know if they're invincible or not. Some particles (like photons and neutrons) might be able to die but I've never found a way to make them apart from letting them expire naturally.
Bomb also has a 'blast radius' that will destroy any destructible (by bomb) element in the radius regardless of anything inbetween
Bomb will turn fire into plasma.
When Bomb destroys an element it completely obliterates it. E.G it will not set off explosive.
Bomb will only explode if it comes into contact with a particle it can destroy. Walls and Diamond are unaffected.
I made a little gun to demonstrate the power of bomb on elements. Just stick a rectangle of whatever you want wiped off the face of the powder universe infront of it and stick something in the detector. It's bulky as it must be constructed from wall or it would explode from touching any other materials.