- Hydrogen - Wikipedia
Hydrogen is a chemical element; it has symbol H and atomic number 1 It is the lightest and most abundant chemical element in the universe, constituting about 75% of all normal matter
- Hydrogen | Properties, Uses, Facts | Britannica
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 | History, Uses, Facts, Physical Chemical Characteristics
Hydrogen is one of the three most abundant elements present on Earth It was discovered in 1766 by Henry Cavendish and is widely used for various industrial, medical and recreational purposes
- Hydrogen - Department of Energy
Hydrogen is the most abundant element in the universe; it is also the simplest and the lightest Although hydrogen constitutes nearly 75% of all the universe’s matter, only a small fraction of the hydrogen accessible on Earth exists in a pure state (not bonded to other elements)
- Hydrogen explained - U. S. Energy Information Administration (EIA)
Hydrogen is a gas at normal temperature and pressure, but hydrogen condenses to a liquid at minus 423 o F (-253 o C) Energy carriers transport energy in a usable form from one place to another Elemental hydrogen is an energy carrier that must be produced from another substance
- Hydrogen Facts - Science Notes and Projects
Hydrogen (H) is the first element of the periodic table and the most abundant element in the universe Here is a collection of hydrogen facts, including its properties, uses, and sources Vial of ionized hydrogen gas
- Hydrogen - Simple English Wikipedia, the free encyclopedia
Hydrogen is the lightest and most abundant element in the universe It is the simplest element and the first in the periodic table It has the chemical symbol H and atomic number 1, which means it has just one proton in its nucleus Hydrogen also has a standard atomic weight of 1 008
- Dummies Guide To Hydrogen - MHI
Hydrogen is the lightest and simplest element with the symbol H It consists of only one electron and one proton and, under normal conditions, it exists primarily in its diatomic form as molecular hydrogen (H2 gas)
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