The origin of the name of the noble gas elements: - Helium Helios (Greek): Sun - Argon Argos (G

The noble gases are the elements contained in the group VIIIA which has a very high stability and most are found in nature in the form of monatomic. elements contained in the noble gas helium (He), Neon (Ne), Argon (Ar), krypton (Kr), Xenon (Xe), radon (Rn). These gases is very little womb of the earth. in dry air it will be found noble gas content as follows:
Helium Neon = 0.00052% = 0.00182% = 0.934% what is saturated steam Argon Krypton Xenon = 0.00011% = 0.000008 = Radioactive Radon *
History what is saturated steam begins with the discovery what is saturated steam of the noble gases Cavendish in 1785. Cavendish found a small portion of the air (kuarang of 1/2000 part) did not react despite involving atmospheric what is saturated steam gases. Then in 1894, Lord Raleigh and Sir William Ramsay managed to separate one element of the gases in the atmosphere (which is now known as the noble gases) based on spectral what is saturated steam data. Then he tried the reacting substances but to no avail and finally the substance was named argon.
And on tahun1895 Ramsay isolated helium, it begins with the discovery of Janssen in 1868 when a total solar eclipse. Janssen found Helium spectrum of sunlight what is saturated steam in the form of yellow what is saturated steam lines. what is saturated steam Helium name itself is a suggestion of Lockyer and Frankland.
Then in 1898 Ramsay what is saturated steam and Travers gain new substance that is Krypton, Xenon and Neon. Krypton and Xenon are found in the residue left after evaporating liquid air almost all. While the Neon was found by withdrawing the air and the separation from other gases with storied distillery.
In 1900 Radon was discovered by Friedrich Ernst Dorn, who called it radium emanation. By William Ramsay and Robert Whytlaw-Gray called it niton and determine its density so that they find Radon is the hardest substance in his time (until now). Radon itself a new name known in 1923.
Making his own noble gas elements recently discovered in 1962. Making element is preceded by a chemist who came from Canada, namely Neil Bartlett. Neil Bartlett barhasil make xenon compounds are XePtF6, since then found many other noble gases are successfully created. And finally the term to refer to substances has changed. Which was originally what is saturated steam called the inert gas (inert) has been changed into a noble gas, which means unstable or difficult to react.
The origin of the name of the noble gas elements: - Helium Helios (Greek): Sun - Argon Argos (Greece): lazy - Neon Neos (Greece): new - Krypton Kriptos (Greece): hidden - Xenon Xenos (Greek) : Foreign - Radium Radon
The melting point and boiling point lower dispersion forces that bind the atoms of the solid and liquid what is saturated steam phase is very low.
Radon: it is difficult to form compounds due to high radioactive element properties
Based on atomic radius, should be least reactive noble gas electron capture. However, in reality very difficult group of noble gases react. In nature this element is mostly found as a monatomic gas. This is because the electron configuration that meets the outer shell to become stable.
Noble gas reactivity increases what is saturated steam with increasing atomic number. Atomic number increases will add atom radius anyway. This resulted what is saturated steam in the pull of the outer electrons of atomic nuclei is reduced, making it easier to break away and arrested another substance. Until now, the noble gas compounds what is saturated steam that are able to react with other substances is xenon and crypto n, whereas helium, neon, and argon still very stable.
According what is saturated steam to experiments conducted Neil Bartlett and Lohmann, noble gas elements can only react with oxygen (O) and Phosphorus (F). Noble gas compound that was first discovered is XePtF6. Noble gases are very stable, a class of 18 or VIIIA with electron what is saturated steam configuration ns 2 np 6 and 1s 2.
83.80
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4.2
12.53
Rn = 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 6s 2 4f 14 5d 10 6p 6 For a stable what is saturated steam electron configuration of noble gases are also commonly used for cutting down the electron configuration for the other elements.
(Greek