i would like to suggest the element chlorine. i dont know if it was suggested already. it would be an acidic gas, and if coming in contact with water, it turns into acid. it would liquify at -34.04C° and turn into a solid at -101.5 C°. as a gas it would be yellow, but as fluid and solid without color. it could also, if it comes in contact with rubidium, produce salt .i know normal salt is made of sodium and chlorine, but rubidium is the closest thing to sodium we already have in the game. since we dont have a acidic gas yet, it would be useful as that. because i am not very creative, i cant tell you about many other uses, other than producing acid and salt. so, what do you guys think about it?
@Phantom(View Post) I don't think chlorine is an acidic gas, although it does corrode metals fairly well. Rubidium is not that similar to sodium. Sodium is mildly reactive compared to rubidium. I don't think there is much need to combine two elements to form salt, however, since salt is in the game already. There isn't that much need for an acidic gas.n On an related note, I think this game needs a dense gas that falls to the ground.