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Radon , including Technical Data, Safety Data and its high purity propertiesresearch, applications and other useful facts are discussed below. Scientific facts such as the atomic structure,ionization energyabundance on Earthconductivity and thermal properties are included. 

Radon is a Block P, Group 18, Period 6 element. The number of electrons in each of Radon‘s shells is 2, 8, 18, 32, 18, 8 and its electronic configuration is [Xe] 4f145d106s26p6. In its elemental form radon‘s CAS number is 10043-92-2. The radon atom has a radius of and it‘s Van der Waals radius is Radon is highly radioactive and a carcinogen. 

Radon is produced by the radioactive decay of radium-226, which is found in phosphate, igneous and metamorphic rocks as well as uranium ores and shales. Radon was discovered by Friedrich Ernst Dorn (Germany) in 1900.

The origin of Radon is derived from the name of the element radium. At first Radon was called Niton, from the Latin word ‘Nitens’ which means shining.

Radon Abundance. The following table shows the abundance of radon and each of its naturally occurring isotopes on Earth along with the atomic mass for each isotope.
Isotope Atomic Mass % Abundance on Earth
Rn-211 210.990585 -
Rn-222 222.017570 -

Radon Safety Data. The safety data for radon metalnanoparticles and its compounds can vary widely depending on the form. For potential hazard information, toxicity, and road, sea and air transportation limitations, such as DOT Hazard Class, DOT Number, EU Number, NFPA Health rating and RTECS Class, please see the specific material or compound referenced in the left margin. Radon compoundshave no biological role. 

Ionization Energy. The ionization energy for radon (the least required energy to release a single electron from the atom in it‘s ground state in the gas phase) is stated in the following table:
1st Ionization Energy 1037.08 kJ mol-1
2nd Ionization Energy - kJ mol-1
3rd Ionization Energy - kJ mol-1

Conductivity. As to radon‘s electrical and thermal conductivity, the electrical conductivity measured in terms of electrical resistivity @ 20 ?C is - ?Ocm and its electronegativities (or its ability to draw electrons relative to other elements) is -. The thermal conductivity of radon is 0.0036 W m-1 K-1. 

Thermal Properties of Radon. The melting point and boiling point for radon are stated below. The following chart sets forth the heat of fusion, heat of vaporization and heat of atomization.
Heat of Fusion 2.7 kJ mol-1
Heat of Vaporization 18.1 kJ mol-1
Heat of Atomization 0 kJ mol-1

Formula Atomic Number Molecular Weight Electronegativity (Pauling) Density Melting Point Boiling Point Vanderwaals radius Ionic radius Energy of first ionization
Rn 86 (222) g.mol -1 - 9.73 -71.15 °C -61.85 °C .200 nm 240 pm 1037.08 kJ.mol-1