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 is …

Hydrogen occurs naturally on earth in compound form with other elements in liquids, gases, or solids. Hydrogen combined with oxygen is water (H 2 O). Hydrogen combined with carbon forms different …

Hydrogen (H 2) is an alternative fuel that can be produced from diverse domestic resources, including renewables, and is expected to play an important, multi-pronged role in decarbonizing the …

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 the bond that …

2 days ago · (Kitco News) – Mounting geopolitical risks and rising debt could push gold prices as high as $5,050 per ounce in the first half of 2026, but this could also mean a more significant pullback in the …

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of …

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 · Hydrogen gas (H₂) consists of two hydrogen atoms bonded together. Each hydrogen atom has one proton in its nucleus and one electron. In the hydrogen molecule, the two atoms are …

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 an …

Jun 26, 2025 · Hydrogen (H2) gas is widely recognized as one of the most important elements in the universe and a potential fuel for a clean energy future. As the lightest and most abundant element, …