Under standard conditions, hydrogen is a gas of diatomic molecules with the formula H2, called dihydrogen, or sometimes hydrogen gas, molecular hydrogen, or simply hydrogen. Dihydrogen …

Liquid hydrogen (H₂ (l)) represents the cryogenic liquid state of molecular hydrogen, existing below its critical temperature of 33.0 K. This cryogenic fluid exhibits a boiling point of 20.28 K …

Dec 7, 2025 · One molecule of hydrogen dissociates into two atoms (H 2 → 2H) when an energy equal to or greater than the dissociation energy (i.e., the amount of energy required to break …

Apr 18, 2025 · Hydrogen (H 2), a diatomic molecule consisting of two hydrogen atoms covalently bonded, holds a position of paramount importance in chemistry, physics, and increasingly, in …

Jan 21, 2025 · We write H2 instead of H because hydrogen naturally exists as a diatomic molecule, meaning two hydrogen atoms bond together to form H2, the most stable form of …

Dec 13, 2025 · Trends in global H2 sources and sinks are analysed from 1990 to 2020, and a comprehensive budget for the decade 2010–2020 is presented.

This page discusses hydrogen (H), the first element, primarily as the diatomic molecule (H2), a colorless, odorless gas used in industries like ammonia and methanol production.

Hydrogen, symbol H, molecular formula H2 is a colourless, odourless, tasteless, flammable gaseous chemical substances among the periodic table family

H2 is the most abundant molecule in the universe, playing a crucial role in the formation of stars and galaxies. In biological systems, H2 is produced during metabolic processes and serves as …

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