Hydrogen (symbol H, atomic number 1) is a chemical element and the most abundant and lightest element of all. It constitutes about 75 percent of the elemental mass in the universe. Hydrogen, found in plasma state, is the main element in the composition of stars in the main sequence. On earth, hydrogen occurs relatively rare in nature. It is the main component of all organic matter and water. Industrial production of hydrogen takes place by steam reforming of natural gas. Electrolysis of water and other energy-intensive hydrogen production techniques are less often used.
In terms of chemical properties, molecular hydrogen...Read More