.....
SALT + WATR = SLTW
PLUT + NEUT = LAVA, NEUT, URAN
DEUT + NEUT = Alot of NEUT
Just check the wiki...
Actually its Glow + Watr = Deut
That would be pretty helpful for newcomers. I just read over what's in the wiki and experimented a little, then went from there. Now I know pretty much all there is to know up until the last 5-6 patches or so, but I'll catch up quickly I bet.
But yeah, I think there should be a wiki page arranged by element that lists properties and interactions with other elements.