what does hydrogen mean
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hydrogen 1. hydrogen-a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe. atomic number 1, H. tritium-a radioactive isotope of hydrogen; atoms of tritium have three times the mass of ordinary hydrogen atoms.ymbol H A colorless, odorless, highly flammable gaseous element that is the lightest and most abundant element in the universe. It occurs in water in combination with oxygen, in most organic compounds, and in small amounts in the atmosphere as a gaseous mixture of its three isotopes (protium, deuterium, and tritium).
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- Definition of HYDROGENATE. transitive verb. : to combine or treat with or expose to hydrogen; especially: to add hydrogen to the molecule of (an unsaturated organic compound). — hy·dro·ge·na·tion \hī-ˌdrae-ˌdrä-jə-ˈnā, shən-ˌhī-\ drə. nounefinition of HYDROGENATE. transitive verb. : to combine or treat with or expose to hydrogen; especially: to add hydrogen to the molecule of (an unsaturated organic compound). — hy·dro·ge·na·tion \hī-ˌdrae-ˌdrä-jə-ˈnā, shən-ˌhī-\ drə. Noun see hydrogenate defined for. kids
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Hydrogen Energy Hydrogen is the simplest element. An atom of hydrogen consists of only one proton and one electron. It's also the most plentiful element in the universe. Despite its simplicity and abundance, hydrogen doesn't occur naturally as a gas on the Earth-it's always combined with other elements. Water, for example, is a combination of hydrogen and oxygen (H 2 O).
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hydrogen atom 1. hydrogen atom-an atom of hydrogen. hydrogen ion-a positively charged atom of hydrogen; that is to say, a normal hydrogen atomic nucleus. atom - (physics and chemistry) the smallest component of an element having the chemical properties of the element.. hydrogen atom-an atom of hydrogen. hydrogen ion-a positively charged atom of hydrogen; that is to say, a normal hydrogen atomic nucleus. atom - (physics and chemistry) the smallest component of an element having the chemical properties of the element.
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Hydrogen bond Hydrogen bond. (Redirected from Hydrogen Bond). Definition. noun. A type of chemical bond that is formed when the slightly positive hydrogen atom of a polar covalent bond forms an electrostatic link with the more electreonegative atom of a polar covalent bond in the same or another molecule.Supplement. A hydrogen bond is a weak type of chemical bond that is common in organisms.As the name suggests, this type of bond involves a hydrogen atom that is attracted to a strongly electronegative atom such as oxygen, fluorine, or nitrogen of a polar covalent bond in the same or another molecule.upplement. A hydrogen bond is a weak type of chemical bond that is common in organisms. As the name suggests, this type of bond involves a hydrogen atom that is attracted to a strongly electronegative atom such as oxygen, fluorine, or nitrogen of a polar covalent bond in the same or another molecule.
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- Name: Hydrogen Symbol: H Atomic Number: 1 Atomic Mass: 1.00794 amu Melting Point:-259.14 °C (14.009985 K, -434.45203 °F) Boiling Point:-252.87 °C (20.280005 K, -423.166 °F) Number of Protons/Electrons: 1 Number of Neutrons: 0 Classification: Non-metal Crystal Structure: Hexagonal Density @ 293 K: 0.08988 g/cm 3 Color: colorless Atomic Structure
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Why does the human body need hydrogen? How does hydrogen help your body? In total therefore hydrogen is the most abundant element in the human body. If your talking about hydrogen gas getting into the body, it's a colourless, odourless and non poisonous gas which would have no ill effects on the body unless you breathed only hydrogen then you would die of affixiation.
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It's Elemental Hydrogen is pronounced as HI-dreh-jen. History and Uses: Scientists had been producing hydrogen for years before it was recognized as an element. Written records indicate that Robert Boyle produced hydrogen gas as early as 1671 while experimenting with iron and acids. Hydrogen was first recognized as a distinct element by Henry Cavendish in 1766. Composed of a single proton and a single electron, hydrogen is the simplest and most abundant element in the universe. It is estimated that 90% of the visible universe is composed of hydrogen.
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What is Metallic Hydrogen? Metallic hydrogen is a state of hydrogen which results when it is sufficiently compressed and undergoes a phase transition (from one phase or state of matter to another); it is an illustration of degenerate matter (degenerate matter is matter which has such extraordinarily high density).
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- The noun HYDROGEN BOND has 1 sense: 1. a chemical bond consisting of a hydrogen atom between two electronegative atoms (e.g., oxygen or nitrogen) with one side be a covalent bond and the other being an ionic bond.Familiarity information: HYDROGEN BOND used as a noun is very rare. HYDROGEN BOND (noun). The noun HYDROGEN BOND has 1 sense: 1. a chemical bond consisting of a hydrogen atom between two electronegative atoms (e.g., oxygen or nitrogen) with one side be a covalent bond and the other being an ionic bond. Familiarity information: HYDROGEN BOND used as a noun is very rare.
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Hydrogenation Hydrogenation – to treat with hydrogen – is a chemical reaction between molecular hydrogen (H 2) and another compound or element, usually in the presence of a catalyst such as nickel, palladium or platinum. The process is commonly employed to reduce or saturate organic compounds.
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Hydrogen Hydrogen is a chemical element with symbol H and atomic number 1. With a standard atomic weight of 1.008, hydrogen is the lightest element on the periodic table. Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass.
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The Major Importance of Hydrogen in Living Organisms Besides acting as an important structural element, hydrogen has a hand in nearly every single physiological function of living organisms due to its usefulness and abundance. In the task of digestion, hydrogen bonds with chlorine to form hydrochloric acid, which breaks down fat and protein in the stomach.
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Why does the human body need hydrogen? How does hydrogen help your body? Best Answer: Let me try and help. Hydrogen is the lightest element (just one proton and one electron) and the most abundant element in the universe. In it's elemental form, hydrogen is a gas. It is readily oxidized and it reacts and binds to lots of other elements.
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History of Hydrogen The word hydrogen comes from the Greek word for water forming.. NASA (National Aeronautics and Space Administration) is the largest user of liquid hydrogen in the world. They are famous for the safe handling of hydrogen.Founded in 1958, NASA is in the USA and has added huge contributions to the history of hydrogen.he word hydrogen comes from the Greek word for water forming.. NASA (National Aeronautics and Space Administration) is the largest user of liquid hydrogen in the world. They are famous for the safe handling of hydrogen.
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Definitions &Translations Wiktionary (0.00 / 0 votes) Rate this definition: hydrogen (Noun). The lightest chemical element (symbol H) with an atomic number of 1 and atomic weight of 1.00794. hydrogen (Noun). Molecular hydrogen (H), a colourless, odourless and flammable gas at room temperature. hydrogen (Noun). An atom of the element.
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What is Hydrogen? Because the element only produces water when it’s burned, it was named hydrogen, Greek for “water-former.”. On its own, hydrogen is not a fuel or source of energy. Rather, when hydrogen burns, it reacts with the oxygen in the air to create heat.
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Hydrogenation Hydrogenation – to treat with hydrogen – is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a catalyst such as nickel, palladium or platinum. The process is commonly employed to reduce or saturate organic compounds. Hydrogenation typically constitutes the addition of pairs of hydrogen atoms to a molecule, often an alkene. Catalysts are required for the reaction to be usable; non-catalytic hydrogenation takes place only at very high temperatures.
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- Hydrogen (H), derived almost entirely from water, is one of the 17 essential nutrients necessary for plant growth. Hydrogen, along with carbon and oxygen, are the three primary elements plant use in the largest amounts, and they perform as the building blocks for plant growth.
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Hydrogen: historical information Hydrogen: historical information. Hydrogen was discovered by Henry Cavendish at 1766 in London, England. Origin of name: from the Greek words hydro and genes meaning water and generator.
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hydrogen Hydrogen definition, a colorless, odorless, flammable gas that combines chemically with oxygen to form water: the lightest of the known elements. Symbol: H; atomic weight: 1.00797; atomic number: 1; density: 0.0899 g/l at 0°C and 760 mm pressure.
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- The story of how Mohammed Assaf got to audition in Cairo from khan Younis is the stuff that episodes of Glee are made of. The Next Arab Idol: Palestine's Boy Wonder and Stereotype Buster Maysoon Zayid May 21, 2013.
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Hydrogen Hydrogen is a chemical element with chemical symbol H and atomic number 1. With an atomic weight of 7000100794000000000♠1.00794 u, hydrogen is the lightest element on the periodic table.Its monatomic form (H) is the most abundant chemical substance in the universe, constituting roughly 75% of all baryonic mass. Non-remnant stars are mainly composed of hydrogen in its plasma state.The most common isotope of hydrogen, termed protium (name rarely used, symbol 1 H), has one proton and no neutrons.xidation of hydrogen removes its electron and gives H+ , which contains no electrons and a nucleus which is usually composed of one proton. That is why H+ is often called a proton. This species is central to discussion of acids.
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Definitions &Translations Hydrogen. Hydrogen is a chemical element with chemical symbol H and atomic number 1. With an atomic weight of 1.00794 u, hydrogen is the lightest element and its monatomic form is the most abundant chemical substance, constituting roughly 75% of the Universe's baryonic mass.
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MADMAN BIOLOGY Hydrogen and oxygen are elements. What that really means is that when an atom, the fundamental unit that makes up everything, has 1 proton (a positively charged sub-atomic particle) it is a hydrogen atom, and when it has 8 protons, it is an oxygen atom. Hydrogen gas is two hydrogen atoms bonded together, H 2.
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- The chemical symbol of hydrogen is H. It is an element with atomic number 1, this means that 1 proton is found in the nucleus of hydrogen. Hydrogen is the lightest, simplest and most commonly found chemical element in the Universe, making up around 75% of its elemental mass. Hydrogen is found in large amounts in giant gas planets and stars, it plays a key role in powering stars through fusion reactions. Hydrogen is one of two important elements found in water (H 2 O). Each molecule of water is made up of two hydrogen atoms bonded to one oxygen atom. In 1766, during an acid metal reaction, Henry Cavendish first formally recognized hydrogen. In 1781 he also found that hydrogen produces water when burned.