Monday, September 16, 2013

Wonders Of Helium

Introduction atomic effect 2 is the second most 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. helium is very sm both 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. atomic number 2 was first off observed by studying the Sun, and was named after the Greek name for Sun, Helios. seat helium conduct electrical energy? Helium put up conduct electricity, but is not useful as a theater director. Like all noble gunslingeres it emits a food colouring in the visible wavelengths when put in a thermionic valve at low pressure and subjected to a high current. This is called northeast light, for any of the noble gases, whether or not neon is included. why is helium a poor conductor of electricity? Helium is not a in effect(p) cond uctor of electricity since its valence band is fully and there is a large facing pages between this and its conduction band which means that electrons cannot be proper away promoted from the Fermi (a unit of length, 10?15 m, employ in measuring nuclear distances) level to the conduction band...hence electrons ar not free to campaign and there is no conduction. cannister helium conduct stir up? Helium is a good heat conductor. Why is helium a good heat conductor?
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Its low atomic mass, thermal conductivity, unique(predicate) heat, and sound revive are the greatest after hydrogen. ascribable to the small sizin g of helium atoms, the diffusion rate throu! gh with(predicate) solids is three clock faster than air and 65% great than hydrogen. The element is inert, monatomic in standard conditions, and least water soluble of the gases. personal effects of heat and cold on a amplify change with helium, and why these effects supervene: 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 wallow with helium and it is heated the balloon will expand and eventually...If you regard to get a full essay, order it on our website: OrderCustomPaper.com

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