Hydrogen is a high-quality energy carrier that can be employed with high conversion efficiency and essentially zero emissions at the point of use. Hydrogen can be made from a variety of widely available primary energy sources, including natural gas,...

Hydrogen Symbol H Atomic Number 1 Atomic Mass 1.00794 Family Group 1 (Ia) Pronunciation HY-dru-jin Overview Hydrogen is the most abundant element in the universe. Nearly nine out of every ten atoms in the universe are hydrogen atoms. Hydrogen is also...

Hydrogen is the first element in the periodic table and the first element in Group 1 of the table. It has an atomic number of 1, an atomic mass of 1.00794, and a chemical symbol of H. Hydrogen is a colorless, odorless, tasteless gas with a density of...

Hydrogen is the first element on the periodic table of elements. It is a colorless, odorless gas, and is denoted by the atomic symbol H. It has an atomic number of 1 and an atomic weight of 1.0079. Hydrogen is the source of most of the energy radiated...

Lightest chemical element, chemical symbol H, atomic number 1. A colourless, odourless, tasteless, flammable gas, it occurs as the diatomic molecule H2. Its atom consists of one proton (the nucleus) and one electron; the isotopes deuterium and tritium...

The lightest of all chemical elements, hydrogen has a density about one-fourteenth that of air. It has a number of special chemical and physical properties. For example, hydrogen has the second lowest boiling and freezing points of all elements. The...

The simplest element. Atomic number of 1. Hydrogen gas has a specific gravity of 0.694 (air=1), so it is much lighter than air. Hydrogen is highly flammable, forming water upon combustion. Explosive limit is 4 to...

Hydrogen (pronounced /ËhaɪdrÉdÊ'Én/), is the chemical element represented by the symbol H and an atomic number of 1. At standard temperature and pressure it is a colourless, odorless, nonmetallic, tasteless, highly flammable diatomic gas...