A molecule of hydrogen has hydrogen (H₂), it is diatomic molecule.
What is Hydrogen Gas?
The non-metal hydrogen has the chemical symbol H. H2 is the chemical formula for hydrogen. Hydrogen has long been known as a practical and environmentally friendly fuel. It is appropriate for internal combustion engines in vehicles and can be stored as a compressed gas or a liquid. Hydrogen is a non-toxic and non-carcinogenic element. Coal and water can be used to generate hydrogen.