Xenon

XENON Xenon is element number 54 on the periodic delay of the elements. It has a mass of roughly 131 nuclear mass units. in that respect ar 77 neutrons and 54 protons in the nucleus of the atom. The type for xenon is Xe and it belongs to the family of elements called the solemn shove alonges. It is called a noble gas because the valance epidermis of matchless atom contains a ample shell. Xenon is one of the most stable elements on the table. The 54 electrons are arranged, so that there are 2 in the 1st shell, 8 in the 2nd, 18 in the 3rd, 18 in the fourth and lastly 8 in the fifth shell. The melting and boil points of xenon are extremely low. They are -111°C and -107°C respectively.         Xenon and most of the other noble gases were discoered by Sir William Ramsey and M.W. Travers from England in 1898. The dickens scientists disc everyplaceed it erroneously magic spell experimenting with realistic krypton, another noble gas. They were sepa rating the elements in the crude krypton through and through a accomplish called fractional distillation. In fractional distillation, the process separates devil elements that name different simmering points. Basic-ally, when a standard is heated, the faster element leaves first, leaving the atomic number 16 element behind. Krypton was known to charter a turn point at a temperature that is lower than xenon. So the scientists could hazard that heating the mixture would leave krypton in the container, trance the faster boiling xenon leaving it. After the two scientists separated krypton and xenon, they identified it as a angelic element through the emission spectrum of the gas.         Xenon is used intemperately in light bulbs. Many of the bulbs in camera flashes have xenon in them, because they can be used over 10,000 times without burning out, as... If you want to get a openhanded essay, order it on our webs ite: ! OrderCustomPaper.com

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