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Hydrogen is important and useful in the real world/ everyday life because we consume hydrogen and were made of hydrogen so without it we wouldn't be alive, as said in the video above. We also use hydrogen for oils, rocket fuel, and there is less than 10 percent of hydrogen in our bodies, and less than .15 percent of the materials that make up the Earth. This is how hydrogen is important in our every day lives.

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Hydrogen Atomic Number: 1

Hydrogen Symbol: H

Hydrogen Atomic Weight: [1.00784; 1.00811]
Reference: IUPAC 2009

Hydrogen Discovery: Cavendish, 1766. Hydrogen was prepared for many years before it was recognized as a distinct element.

Hydrogen Electron Configuration: 1s ¹

Hydrogen Word Origin: Greek: hydro, water; genes, forming Named by Lavoisier.

Hydrogen Isotopes: Protium (0 neutrons), Deuterium (1 neutron), and Tritium ( 2 neutrons)

Ionization potential: 13.5984 ev

Physical form: Colorless gas

Melting point: -259.2°C

Boiling point: -252.762°C

Critical temperature: -240.18°C

Density: 0.082 g/L

Specific heat: 14.304 J/g*K

Valence: 1

Hydrogen Properties: Hydrogen is the most abundant element in the universe. The heavier elements were made from hydrogen or from other elements that were made from hydrogen. Hydrogen is a colorless, odorless, combustible gas. Hydrogen gas is so light and diffusive that uncombined hydrogen can escape from the atmosphere. Hydrogen gas ordinarily is a mixture of two molecular forms, ortho- and para-hydrogen, which differ by the spins of their electrons and nuclei. Normal hydrogen at room temperature consists of 25% of the para form and 75% of the ortho form. The ortho form cannot be prepared in the pure state. Since the two forms of hydrogen differ in energy, their physical properties also differ.

Hydrogen Uses: Hydrogen is important in the proton-proton reaction and carbon-nitrogen cycle. Liquid hydrogen is used in cryogenics and in the study of superconductivity. Great quantities are used for the fixation of nitrogen from the air in the Haber ammonia process. Hydrogen is use in welding, for the hydrogenation of fats and oils, in methanol production, in hydrodealkylation, hydrocracking, and hydrodesulfurization.

Other applications include producing rocket fuel, filling balloons, making fuel cells, producing hydrochloric acid, and reducing metallic ores. Deuterium is used as a moderator to slow down neutrons and as a tracer. Tritium is used in the production of the hydrogen (fusion) bomb. Tritium is also used in making luminous paints and as a tracer.

Hydrogen Sources: Hydrogen occurs in the free state in volcanic gases and some natural gases. Hydrogen is prepared by steam on heated carbon, decomposition of certain hydrocarbons with heat, action of sodium or potassium hydroxide on aluminum electrolysis of water, or displacement from acids by certain metals.

Other Hydrogen Facts: While about 75% of the universe's elemental mass is hydrogen, hydrogen is relatively rare on Earth. The most common isotope of hydrogen is protium, which has one proton, but no neutrons. Hydrogen gas is extremely flammable. It was associated with the famous explosion of the Hindenburg airship and is used as a fuel by the space shuttle main engine.

References: Los Alamos National Laboratory (2001), Crescent Chemical Company (2001), Lange's Handbook of Chemistry (1952) International Atomic Energy Agency ENSDF database (Oct 2010)

Quiz: Ready to test your hydrogen facts knowledge? Take the Hydrogen Facts Quiz.

Return to the Periodic Table

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Hydrogen Atomic Number: 1 Hydrogen Symbol: H Hydrogen Atomic Weight: [1.00784; 1.00811]Reference: IUPAC 2009 Hydrogen Discovery: Cavendish, 1766. Hydrogen was prepared for many years before it was recognized as a distinct element. Hydrogen Electron Configuration: 1s 1 Hydrogen Word Origin: Greek: hydro, water; genes, forming Named by Lavoisier.

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Hydrogen is also added to fats and oils, such as peanut oil, through a process called hydrogenation. Liquid hydrogen is used in the study of superconductors and, when combined with liquid oxygen, makes excellent rocket fuel. Hydrogen also combines with other elements to form numerous compounds.

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Hydrogen is everywhere, and many people think it's going to be the one of the best forms of alternative energy. Where did it come from, and how abundant is it? What is Hydrogen?: https://www.youtube.com/watch?v=cxFb4hmfVT0 Read More: Facts About Hydrogen http://www.livescience.com/28466-hydrogen.html "The most abundant element in the universe, hydrogen is also a promising source of "clean" fuel on Earth."

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Isotopes: Hydrogen's isotopes have a mass number of 1, 2, and 3. Their nuclear symbols are therefore 1H, 2H, 3H.

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Melting Point: -434.5 F
Boiling Point: -423.2 F
Density: 0.07 gm/cm
Abundance: 90 percent of the visible universe is composed of hydrogen.

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Hydrogen's family/group is the alkali metal.

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Hydrogen's class is a nonmetal.

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Hydrogen is easily the most abundant element in the universe. It is found in the sun, most of the stars, and Jupiter. On Earth, hydrogen is found in the greatest quantities as water.

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Atomic Number:1
Symbol: H
Atomic Mass:1.008

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In 1671 Robert Boyle discovered and described the reaction between iron fillings and dilute acids, which result in the production of hydrogen gas. In 1766, Henry Cavendish was the first to recognize hydrogen gas as a discrete substance, by naming the gas from a metal -acid reaction "inflammable air".

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Hydrogen comes from the Greek words "hydro" (meaning water) and "genes" (meaning creator). It was named by French chemist Antoine Lavoisier because when it burns it "creates water ".