Hydrogen

Hydrogen is the first element listed on the Periodic Table and a gaseous food at room temperature. Named after its role in water, hydrogen is also the primary fuel source for stars. The concentration of hydrogen ions also is the basis for acidity. A single proton is also just hydrogen (¹H⁺, or the protium cation).

In Minecraft

The compound recipe for H2O in Minecraft.

Hydrogen is used in several compound recipes, most famously H2O.

Compound	Input	Output
Water	2 x Hydrogen, 1 x Oxygen	1 x H₂O
Ammonia	3 x Hydrogen, 1 x Nitrogen	1 x NH₃
Sodium Acetate	2 x Carbon, 3 x Hydrogen, 1 x Sodium, 2 x Oxygen	1 x C₂H₃NaO₂
Copper(II) ibuprofenate^{[citation needed]}	52 x Carbon, 64 x Hydrogen, 4 x Hydrogen, 2 x Copper, 8 x Oxygen	1 x C₅₂H₆₈Cu₂O₈

Preceded by neutronium	Periodic Table No. 1	Succeeded by helium