Hydrogen

Hydrogen is the chemical element with the symbol H and atomic number 1. It is the simplest and most abundant element in the universe, primarily found in stars, including the Sun, where it exists in a gaseous form. Hydrogen consists of one proton and one electron, making it the lightest element on the periodic table. It is colorless, odorless, and non-toxic.

In nature, hydrogen commonly exists as a diatomic molecule (H₂), where two hydrogen atoms bond together. Hydrogen plays a critical role in various chemical processes, including combustion and the formation of water when it reacts with oxygen. It is also integral to the field of chemistry and is used in the production of ammonia through the Haber process, as well as in various industries such as fuel cells for clean energy, refining petroleum, and the production of metals.

Moreover, hydrogen is a key player in the ongoing research into alternative fuels and energy storage solutions due to its potential to reduce carbon emissions when used as a clean energy source. Its isotopes include deuterium and tritium, which have applications in nuclear fusion and other specialized fields.