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Helium He

Helium He. Made by: Kevin 7.1. Contents. History. Helium Facts. Uses of Helium. Effects on the Environment. Interesting Facts. Other Information. Bibliography. Sir William Ramsey. Eduard Franklard. History.

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Helium He

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  1. HeliumHe Made by: Kevin 7.1

  2. Contents History Helium Facts Uses of Helium Effects on the Environment Interesting Facts Other Information Bibliography

  3. Sir William Ramsey Eduard Franklard History In the year 1868, there was a solar eclipse in India which made a French Astronomer named Pierre Jules Janssen, who was curious to find out about the Chromospheres around the sun and that was the first time that anyone did it. Soon he discovered and studied about the striped yellow line. After that, he succeeded on proving that the yellow stripe was a new element. Two English Astronomer named Sir Joseph Norman Lockyer and Eduard Franklard agreed with Janssen’s results that the element was not earthly. So they named the new element ‘Helium’ after the Greek word ‘Helios’ meaning the sun. When the year 1895 came, Helium wasn’t really that productive until this man named Sir William Ramsey who continued on the Helium experiment, and founded the uses for it that made it popular until today. So he then became the discoverer of Helium. Pierre Jules Janssen Sir Joseph Lockyer

  4. Helium Facts Helium is an element that is the second lightest element but doesn’t form any compound. Helium is odorless, colorless, tasteless, non-toxic and insipid. With the periodic symbol of ‘He’ and the atomic number of 2, it is a gas that is lighter than air and isn’t flammable. At about 4 Kelvin (-269 Celsius), Helium becomes liquid, and when Helium becomes liquid, it has many uses for it, and even when Helium is in gas form, it can also be used for many things. Helium has the lowest of the melting point for -272 Celsius, and boiling point of -268.9 Celsius. It has a density of 0.178*10-3 g.cm at 20 Celsius. It has an atomic mass of 4.00260 g.mol-1and it has a valence of 0. It also adds up to 23%of all elemental matter measured by mass.

  5. Uses of Helium • Liquid Form: • -Lasers • -light bulbs • -Medical Applications • -Nuclear Reactors • -Powerful Magnets Gas Form: -Blimps/Airships -Balloons -Makes a high pitch sound momentarily -Keeps things from exploding -Sports Indication

  6. Effects on the Environment Helium has no hazardous effect with the environment because it is a harmless gas and it can mostly effect with health. However, even though if helium did effect the environment, it wouldn’t be as effective because there won’t even be enough helium for it is a very light molecule that would run out as it goes to outer space. When Helium has no effect on the environment it can effect the voice. Helium is actually founded as a component of a natural gas, like from the United States for it is a radioactive decay of minerals underground, so it wouldn’t be a harm with the environment.

  7. Interesting Facts -Weighs 4 times as much as a Nitrogen -Weighs twice as much as Hydrogen -Makes a high pitch voice momentarily -Founded in the sun from the lines of spectrum -Commonly used in everyday life -Theory of running out of helium -harmless

  8. Other Information Source: You Tube – Helium Periodic Table of Videos

  9. Bibliography “Helium.” Helium. 21st April, 2010.http://www.zyra.org.uk/helium.htm Helmenstine Marie, Anne. “10 Helium Facts.” About.com: Chemistry. 23rd April, 2010http://chemistry.about.com/od/elementfacts/a/10-helium-facts.htm “Helium - He.” Water Treatment Solution-Lenntech. 24th April, 2010 http:///www.lenntech.com/periodic/elements/he.htm “History.” Helium. 24th April, 2010 http://nautilus.fis.uc.pt/st2.5/scenes-e/elem/e00210.html Periodic Videos. “Periodic Videos.” Helium-Periodic Tables of Videos. 24th April, 2010http://www.youtube.com/watch?v=a8FJEil5e6Q Loy, Jim. “Physics.” The Periodic Table. 25th April, 2010http://www.jimloy.com/physics/periodic.htm

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