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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 simply hydrogen.
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 associated with this nucleus.
Learn about hydrogen, the most abundant element in the universe and the lightest gas on Earth. Find out its discovery, history, biological role, natural abundance, uses and more.
19 wrz 2018 · Hydrogen is the chemical element with the element symbol H and atomic number 1. It's essential for all life and abundant in the universe, so it's one element you should get to know better. Here are basic facts about the first element in the periodic table, hydrogen.
Learn about hydrogen, the most abundant element in the universe and the third most abundant on Earth. Find out how it was discovered, how it is used, what are its properties and health effects, and what are its isotopes.
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...
Hydrogen is the most abundant element in our universe, making up about 75% of its total mass. On Earth, naturally occurring hydrogen gas is found in very small quantities. Instead, most hydrogen atoms are bound to other atoms – for example, water is a molecule containing hydrogen and oxygen atoms.
