Other Great Discoveries. If you put helium in a balloon and let go of the balloon, the balloon will rise until it reaches a height of just under 33,000 feet (10 kilometers), at which point it will burst because the atmospheric pressure and the strength of the balloon's skin won't be enough to withstand the pressure of the gas inside it [source: BBC Science Focus].. Adapted for the internet from “The Discovery of Helium in Natural Gas,” produced by the National Historic Chemical Landmarks program of the American Chemical Society in 2000. The discovery of helium Helium was discovered by the French astronomer Pierre Jules Cesar Janssen during a total solar eclipse in Guntur, India, in 1868. Helium, chemical element, inert gas of Group 18 (noble gases) of the periodic table. He noticed the new element when studying a solar eclipse. Helium gets its name from the Greek word "helios" meaning "sun". Helium, the second most abundant element in the universe, was discovered on the sun before it was found on the earth.Pierre-Jules-César Janssen, a French astronomer, noticed a yellow line in the sun's spectrum while studying a total solar eclipse in 1868. (Hence the name “Helium” - from “Helios”…the Sun.) Of all the known gases, helium is the least soluble in water.

In 1907, Ernest Rutherford and Thomas Royds demonstrated that an alpha particle is actually a helium nucleus. By using argon, which Ramsay earlier discovered, the two scientists were able to collect the first sample of neon, which is an odorless and colorless gas. Helium is lighter than air! How was it discovered? How Scientists Discovered Helium, the First Alien Element, 150 Years Ago First found only on the sun, scientists doubted the mysterious element even existed for more than a decade It was the French astronomer Jules Janssen who discovered the helium. The element wasn't found on Earth until 1895. Ramsey sent samples of the gas to Sir William Crookes and Sir Norman Lockyer who identified helium.

Who Discovered Cobalt Aug. 18, 1868: Helium Discovered During Total Solar Eclipse The event marks the first discovery of an "extraterrestrial" element, as helium had not yet been found on Earth. Helium is lighter than air! Helium was discovered spectroscopically in 1868 in the chromosphere of the Sun during a total solar eclipse.
Helium was first discovered in 1868 by astronomer Pierre Janssen. Most people guess that we extract helium from the air, but actually we dig it out of the ground. Helium is the second most abundant element in the universe. Several interesting properties of helium were discovered in the ensuing years. It was discovered independently in clevite by Cleve and Langley at about the same time. In 1895, Sir William Ramsay discovered helium after treating cleveite, a uranium mineral, with mineral acids. In 1907, Ernest Rutherford and Thomas Royds demonstrated that an alpha particle is actually a helium nucleus. Helios is also the name of the Greek god of the Sun. Helium is the second least reactive element. In 1907, Ernest Rutherford and Thomas Royds demonstrated that an alpha particle is actually a helium nucleus.

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