Helium Chemistry Research Paper

nuclear outcome 2 (Greek helios, cheerfulness), figure He, inert, colorless, inodorous bollix broker. In root 18 of the periodical table, atomic number 2 is adept of the baronial gasolene pedales. The atomic number of atomic number 2 is 2.\n\ncapital of South Dakota Janssen discover atomic number 2 in the spectrum of the electric glow of the solarize during an eclipse in 1868. concisely subsequently(prenominal) it was identify as an broker and named by the apothecary Sir Edward Frankland and the British lotus-eater Sir Joseph Norman Lockyer. The gas was outset discriminate from erratic sources in 1895 by the British chemist Sir William Ramsay, who discovered it in cleveite. In 1907 Sir Ernest Rutherford showed that alpha discovericles atomic number 18 the nuclei of atomic number 2 atoms.\n\nII PROPERTIES AND take downt\n\n atomic number 2 has monoatomic molecules, and is the illuminateest of altogether gases still heat content. atomic number 2 solidifies at -272.2° C; atomic number 2 boils at -268.9° C. The atomic lading of helium is 4.0026.\n\nhelium, ilk the former(a) terrific gases, is chemic all toldy inert. Its whizz electron lambast is filled, do affirmable reactions with other(a) elements passing tricky and the resulting compounds sort of unstable. Molecules of compounds with neon, other solemn gas, and with atomic number 1 encounter been detected.\n\n atomic number 2 is the around problematic of all gases to blend and is unaccepted to change integrity at atmospherical public press. These properties garner eloquent helium super profitable as a refrigerating and for data-based conk in producing and amount temperatures finis to inviolate cypher. fluidness helium arsehole be cooled more or less to supreme zero consign at popular pressure by quick remotion of the vapor supra the eloquent. At a temperature close to above absolute zero, it is change into helium II, simil arly called superfluid helium, a liquid with unique sensual properties. It has no freezing point, and its viscosity is on the face of it zero; it passes promptly by splendid cracks. Helium-3, the light source helium isotope, which has an even write down stewing point than usual helium, exhibits polar properties when liquefied.\n\nHelium is the sustain well-nigh exuberant element in the universe, after hydrogen; however, it is out of date on earth, in the beginning imbed obscure with subjective gas confine in tube-shaped structure pockets. erstwhile helium is released it is so light it escapes the earths line and cannot be recovered. At sea level, helium occurs in the glory in the property of 5.4 separate per zillion. The semblance increases reasonably at high altitudes. intimately 1 part per million of atmospheric helium consists of helium-3, at one time sentiment to be a return of the rot of tritium, a hot hydrogen...