Helium

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Helium
Atomic Number: 2 Electronic Configuration: 1s2
Atomic Symbol: He Melting Point: <-272.2 C
AtomicWeight: 4.0026 Boling Point: 268.93 C
As everybody knows, there are certain number of elements classified according to their characteristics and ways of actingin nature. According to Jefferson Lab: “An element is a substance that is made entirely from one type of atom.” Nowadays, scientists know of 117 different elements. Each has very specific qualitiesthat make them unique and wonderfully magnifies. In addition to all these elements we will talk about Helium which is the most abundant element in the universe, is a colorless, odorless, non-toxicelement. There are many things to mention about this incomparable element.
First of all, the history of Helium began when Janssen obtained the first evidence of this element. This was when he wasobserving a solar eclipse in 1868. He detected a new line in the solar spectrum. In addition, the hunt to find helium in the Earth was in 1895. Ramsay, a Scottish chemist, made an experiment with mineralcalled uranium. He found Helium in the uranium mineral cleveite and collected the gas that was produced. Moreover, A few years later, Rutherford and Royds showed that alpha particles are helium nuclei.Even thought helium is one of the most abounding elements in the universe, most of it is found outside the Earth’s atmosphere.
Helium has different kind of sources. Helium is obtained form naturalgas. Furthermore, it has been detected spectroscopically in great abundance in hotter stars. Since helium has a lower boiling point than any other element, low temperature and high pressure are usedto liquefy nearly all the other gases. Helium is produced as a by-product of the refining of natural gas, which is carried out on a commercial scale in the USA and Poland. In these countries...
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