Vesivetyä

Vesivetyä, also known as hydrogen, is the most abundant chemical element in the universe. It has the atomic number 1 and the symbol H. In its pure form, it is a colorless, odorless, and tasteless diatomic gas. Hydrogen is highly flammable and burns with a pale blue flame, producing water. It is the lightest element and has the lowest density. The most common isotope of hydrogen is protium, which has one proton and no neutrons. Deuterium, an isotope with one neutron, and tritium, an isotope with two neutrons, also exist. Tritium is radioactive.

Hydrogen plays a crucial role in many biological processes. It is a key component of water, which is essential for all known forms of life. Organic molecules, such as carbohydrates, fats, and proteins, also contain hydrogen. In stars, like our sun, hydrogen undergoes nuclear fusion, converting into helium and releasing vast amounts of energy, which is the source of their light and heat. Industrially, hydrogen is used in various applications, including the production of ammonia for fertilizers, the refining of petroleum, and as a fuel, particularly in fuel cells for vehicles and power generation. Its potential as a clean energy source is a subject of ongoing research and development.