hacker45:
we only need 2 more imagine the possibilities if we had all four half of all the periodic table is made up of those 4 gasses.
cooldaddy96:
@MasterMind555!164465
It's pure solid state cannot be replicated on earth; it's freezing point is lower than the lowest possible temperature on earth, which is -273.15 °C..
wikipedia:
Liquid nitrogen freezes at 63 K (-210 °C; -346 °F).