The chemical element that has the symbol H is hydrogen. Hydrogen is the simplest and most abundant element in the universe, consisting of just one proton and one electron. It is primarily found in molecular form (H₂) and is essential for many chemical processes. As a key component of water (H₂O), hydrogen is vital for life on Earth. Additionally, it plays a crucial role in various chemical reactions, including combustion and the production of organic compounds. In recent years, hydrogen has gained attention as a potential clean energy source, particularly in fuel cells and renewable energy applications.