avr wrote:I'm curious, why neglect brimstone (sulpher)? And more importantly, did you remember the metallic aspects of hydrogen?
Atoms might not mean hydrogen and oxygen in PF, too. Democritus' atomic theory back 2400 years or so had atoms of sharp tastes and sweet atoms, for example. Who knows what those stars are fusing?
I remember trying to put together an elemental system of magic based on the elements carbon, hydrogen, oxygen and nitrogen. It was fun but not hugely playable IMO.
CHON are the four most common elements in life. And no, I was more concerned with the aspects of hydrogen related to life or otherwise on Earth (acids/alkalis, hydrogen bonds in water, and occasional explosive combustion) rather than its state deep inside gas giants, burning in stars, or floating in thin clouds in space.