List of elements by symbol - Simple English Wikipedia, the free ...
This is a list of elements by atomic number with symbol. 262.
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] but more commonly called hydrogen gas, molecular hydrogen or …
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.
Hydrogen | Properties, Uses, & Facts | Britannica
2024年10月30日 · 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 - Element information, properties and uses | Periodic …
Element Hydrogen (H), Group 1, Atomic Number 1, s-block, Mass 1.008. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Hydrogen - Simple English Wikipedia, the free encyclopedia
Hydrogen is a chemical element. It is the simplest element and the first in the periodic table. It has the symbol H and atomic number 1. Hydrogen also has a standard atomic weight of 1.008. This makes it the lightest element. Hydrogen is a gas at 15 degrees Celsius (59 degrees Fahrenheit) at standard atmosphere (and in many other situations).
Hydrogen (H) - Periodic Table
Hydrogen is a chemical element of the periodic table with chemical symbol H and atomic number 1 with an atomic weight of 1.0079 u and is classed as nonmetal and is part of group 1 (alkali metal). Hydrogen is gas at room temperature.
Hydrogen Facts - Element 1 or H - ThoughtCo
2020年1月29日 · Hydrogen (element symbol H and atomic number 1) is the first element on the periodic table and the most abundant element in the universe. Under ordinary conditions, it is a colorless flammable gas. This is a fact sheet for the element hydrogen, including its characteristics and physical properties, uses, sources and other data.
Hydrogen - Formula, Properties, Uses, Facts - Study Chemistry
Hydrogen, symbol H, molecular formula H2 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.