Algodoo

I did this just cuz I was bored, enjoy! By the way, if you'd like to use them, just keep in mind to give me some credit
Other things I have in mind:
-Nothing
Already here:
-Ions (He+, He- , O+ ,O-)
-Oxygen
-Hellium, Super proton and muon were removed due to bugs and gliches
-Proton
-Electron
-Heat (Turn on air friction for cooling down, turn it negative for heating up (efective at -10))
If you would like to see something in here, send your suggestions in the comments!