
Hydrogen - Wikipedia
Hydrogen is a chemical element; it has symbol H and atomic number 1. It is the lightest element and, at standard conditions, is a gas of diatomic molecules with the formula H 2, sometimes called dihydrogen, [11] hydrogen gas, molecular hydrogen, or simply hydrogen. It is colorless, odorless, [12] non-toxic, and highly combustible.
Hydrogen | Properties, Uses, & Facts | Britannica
Jan 26, 2025 · hydrogen (H), a colourless, odourless, tasteless, flammable gaseous substance that is the simplest member of the family of chemical elements. The hydrogen atom has a nucleus consisting of a proton bearing one unit of positive electrical charge; an electron, bearing one unit of negative electrical charge, is also
Hydrogen (H) – Definition, Preparation, Properties, Uses
Jan 21, 2025 · Hydrogen can exist as H (a neutral atom) or H+ (a proton). H+ denotes a hydrogen ion, which occurs when hydrogen loses its electron, resulting in a positively charged ion. Hydrogen, the simplest and most abundant element, is pivotal in chemistry and physics.
Hydrogen | H (Element) - PubChem
Hydrogen is a chemical element with symbol H and atomic number 1. Classified as a nonmetal, Hydrogen is a gas at room temperature. 1s 1. J.C. Slater, J Chem Phys, 1964, 41 (10), 3199-3205. DOI:10.1063/1.1725697.
20.3: The Chemistry of Hydrogen - Chemistry LibreTexts
Hydrogen can form compounds that contain a proton (H +), a hydride ion (H −), an electron-pair bond to H, a hydrogen bond, or a three-center bond (or electron-deficient bond), in which two electrons are shared between three atoms. Hydrogen gas can be generated by reacting an active metal with dilute acid, reacting Al or Zn with a strong base ...
Chemistry of Hydrogen (Z=1) - Chemistry LibreTexts
Jun 30, 2023 · Hydrogen is a colorless, odorless and tasteless gas that is the most abundant element in the known universe. It is also the lightest (in terms of atomic mass) and the simplest, having only one proton and one electron (and no neutrons …
Hydrogen (H) - Element Information, Preparation, Physical and …
What is Hydrogen? - Hydrogen is a highly combustible diatomic gas with the molecular formula H2. Learn the Preparation, Uses of Hydrogen, Atomic Mass of Hydrogen, Atomic Number and Its Properties with FAQs.
The Chemistry of Hydrogen - Division of Chemical Education, …
Hydrogen is the only element that forms compounds in which the valence electrons are in the n = 1 shell. As a result, hydrogen can have three oxidation states, corresponding to the H + ion, a neutral H atom, and the H - ion. Hydrogen's Placement in the Periodic Table.
Hydrogen - Formula, Properties, Uses, Facts - Study Chemistry
Hydrogen, symbol H, molecular formula H 2 is a colorless, odorless, tasteless, flammable gaseous chemical substance in the periodic table. In chemistry or chemical science, the hydrogen atom is the only member of the chemical element in which the valence electron is under the direct influence of the nucleus.
Hydrogen Facts, Symbol, Discovery, Properties, Uses - Chemistry …
Hydrogen (pronounced as Hi-dreh-jen) is a colorless gas represented by the chemical symbol H. It is the first element in the periodic table, belonging to the family of nonmetals [1]. Since hydrogen is a diatomic gas, it’s denoted by the molecular formula H 2.