is the with the symbol H and 1.

is the lightest . At standard conditions is a of diatomic molecules having the formula H2.

It is colorless, odorless, non-toxic, and highly combustible.

is the most abundant substance in the universe, constituting roughly 75% of all normal matter.

Stars such as the Sun are mainly composed of in the plasma .

Most of the on exists in molecular forms such as water and compounds.

For the most common isotope of (symbol 1H) each atom has one proton, one , and no neutrons.

Last Updated on 2 years by pinc