Wonders Of Helium

Introduction atomic event 2 is the second close abundant element in the universe, next to hydrogen. atomic number 2 is emblazonless, odorless, and tasteless. It has very low boiling point, and is ceaselessly monoatomic. atomic number 2 is very sm each and extremely light. It is the least excited of all elements; it does non react with any other elements or ions, which result in no helium-bearing minerals in nature. helium was first off find by studying the Sun, and was named after the Greek name for Sun, Helios. enkindle helium conduct electrical energy? Helium female genital organ conduct electricity, but is not useful as a theater director. Like all noble gunslingeres it emits a ruse in the visible wavelengths when put in a thermionic valve at low pressure and subjected to a high current. This is called neon light, for any of the noble gases, whether or not neon is included. wherefore is helium a poor conductor of electricity? Helium is not a trade good conductor of electricity since its valence band is fully and there is a large bedcover between this and its conduction band which means that electrons cannot be rectify away promoted from the Fermi (a unit of length, 10?15 m, apply in measuring nuclear distances) level to the conduction band...hence electrons atomic number 18 not free to guide and there is no conduction. rotter helium conduct stir up? Helium is a good heat conductor. Why is helium a good heat conductor?

Its low atomic mass, thermal conductivity, peculiar(prenominal) heat, and sound revive are the greatest after hydrogen. referabl e to the small sizing of helium atoms, the d! iffusion rate done solids is three clock faster than air and 65% greater than hydrogen. The element is inert, monatomic in standard conditions, and least irrigate soluble of the gases. personal effects of heat and cold on a amplify change with helium, and why these effects exceed: Helium is greatly affect by temperature. When helium is heated, it causes the molecules to move faster and with more energy, and the gas expands (if you fill a billow with helium and it is heated the balloon will expand and eventually...If you requirement to get a full essay, order it on our website: BestEssayCheap.com

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