Hydrogen Production and Storage

Hydrogen is the first element in the periodic table. Its chemical symbol is H with an atomic weight of 1.00794, and it is the lightest element in the periodic table. Monoatomic hydrogen (H) is the most common chemical substance in the universe, accounting for 75% of the total mass of the universe, and the rest is mainly helium. Heavy elements with higher atomic numbers and larger relative atomic masses constitute about 1% of the total universal mass. Hydrogen has a special status in terms of material structure, life composition, or chemical reactions.