At standard temperature and pressure, hydrogen (H2) is a colorless, odorless, nonmetallic, tasteless, highly flammable diatomic gas.
It is used to make ammonia for fertilizers, refining metals, and methanol for making artificial materials like plastics. Hydrogen (H2) is also used as a rocket fuel where liquid hydrogen is combined with liquid oxygen (LOX) to produce a powerful explosion.
Hydrogen (H2) was given its name by the French chemist Antoine Lavoisier. The name comes from the Greek words “hydro,” meaning water, and “genes,” meaning creator, because hydrogen “creates water” when it burns.