Radon

atomic number 86 registered nurse is an member that is on the bimestrial turn off of elements. It is a member of the family called the grand bobblees, which is group number 18. atomic number 86 is a gas. It is a gas at 298 k. it is the heaviest known mononuclear gas at that temperature. radon is also colorless. When it is cooled below the freeze point, radon exhibits a fantabulous phosphorescence, which becomes yellow as the temperature is lowered. At the temperature of liquid air it is clear of an orangish-red. The noble gases can be found on the real right side of the periodic table of elements. Radon has been further about for quite some time. Radon comes from the element radium, which is derived from the element uranium. After radium has been 1,620 days old, radon forms 3.8 days afterwards. Radon is most often produced by the molder of radium in the crust of the earth. Radon was head start spy by a man named Fredrich Ernst Dorn. Mr. Dorn discovered this element around 1898. At first radon was not called...If you want to stay a all-inclusive essay, order it on our website: OrderEssay.net

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