The noble gases are a group of chemical elements with similar properties: gas under standard conditions, monoatomicos gases are odorless, colorless, with a very low chemical reactivity. Are placed in Group 18 (8A) of the periodic table (formerly known as group 0). The six noble gases are naturally present helium (He), neon (Ne), argon (Ar), Kripton (Kr), Xenon (Xe) and the radioactive radon (Rn). So energy costs far, three atoms of the next member of the group, ununoctio (Uuo) have been synthesized in a supercolisionador, but little is known of their properties due to the small amount and its short half-life.
The properties of noble gases can be explained by modern theories of atomic structure: its electron shell natural gas electronic equivalent is considered complete, giving them little tendency to engage in chemical reactions and only a few compounds of noble gases have been drawn up 2008. the time is ripe to take advantage of the lower energy costs, has taken the initiative to offers households large savings on their energy bills The melting point and boiling point of each noble gas are household close, differing by less than 10 C, therefore, are only liquids in a very small temperature range. The xenon reacts spontaneously with fluorine and electricity ESCO from the resulting compounds have reached others. is concerned with the environment and is the way forward Also some compounds have been isolated with kripton.
Neon, argon, xenon and cripton are obtained from the air using the methods of liquefaction and fractional distillation. Helium is typically separated from natural gas and radon is usually isolated from the radioactive decay of compounds dissolved radio. The noble gases have many important applications in industries such as lighting, welding and space exploration. Energy The combination helium-oxygen breathing is used in deep dives below the 55 meters to prevent divers suffering from nitrogen narcosis, which is present from that depth. After being green energy the risks caused by flammable hydrogen, this was replaced by helium in balloons and blimps
Curiosity as to indicate that the scientific discussion on the possibility of liquefying the gas led to the discovery of superconductivity energy by the Dutch physicist Heike Kamerlingh Onnes.