* Update elements.yml
* Update gases.yml
niteogen is an element
* Update elements.yml
just make chlorine 2u
* fix le dumb mistake
i added another metabolisms:
* copper, mercury, lithium changes
copper: very budget lead, does poison damage very slowly over time, not good enough to kill effectively but drinking a lot of it will poison you slowly over time, just like real copper poisoning!
mercury: halved damage
lithium: now vaguely simulates brain damage by very weakly poisoning you slowly and making you laugh and scream randomly while metabolizing. slower metab rates