Source: wikibot/solid-hydrogen
= Solid hydrogen
{wiki=Solid_hydrogen}
Solid hydrogen refers to hydrogen in its solid state, which occurs at extremely low temperatures and under high pressures. Under standard conditions, hydrogen exists as a diatomic gas (H₂), but when cooled to temperatures below approximately 14 K (-259.15 °C or -434.47 °F) at atmospheric pressure, it can transition into a solid form. Solid hydrogen is characterized by its low density and unique physical properties.