Radon - Element Properties and Periodic Table Information

Radon - An element from the Periodic Table based on the IOUPAC 1985 standard

Chemical Elements

Periodic Table

Definition of the Radon Element
A colorless, radioactive, inert gaseous element formed by the radioactive decay of radium. It is used as a radiation source in radiotherapy and to produce neutrons for research.

Origin / Meaning of the name Radon
The name originates from the Latin word 'nitens' meaning shining.

Classification of the Radon Element
Radon is classified as an element in the 'Noble Gases' section which can be located in group 18 of the Periodic Table.

Facts about the Discovery and History of the Radon Element
Radon was discovered by Friedrich Ernst Dorn in 1900. William Ramsay and Robert Whytlaw-Gray isolated it and gave it the name 'Niton' in 1908.  It has been called Radon since 1923.

Occurrence the Radon Element
One molecule of radon in 1 x 1021 molecules of air
Found in some spring waters and hot springs
Obtained from decay of radium

Associated Uses of Radon
Treatment of cancer - radiotherapy
Produce neutrons for research
 

The Properties of the Radon Element
Name of Element : Radon
Symbol of Element : Rn
Atomic Number of Radon : 86 
Atomic Mass: (222.0) amu
Melting Point: -71.0 °C - 202.15 °K
Boiling Point:  -61.8 °C - 211.35 °K
Number of Protons/Electrons in Radon : 86
Number of Neutrons in Radon : 136
Crystal Structure: Cubic
Density @ 293 K: 9.73 g/cm3
Color of Radon : colorless

Radon and the Periodic Table
Check out Radon on the Periodic Table which arranges each chemical element according to its atomic number, as based on the periodic law, so that chemical elements with similar properties are in the same column. Our Periodic Table is simple to use - just click on the symbol for Radon for additional information and for an instant comparison of the Atomic Weight, Melting Point, Boiling Point and Mass - G/cc with any other element. An invaluable source of facts and information as a Chemistry reference guide.

Radon - IUPAC and the Modern Standardised Periodic Table
The Standardised Periodic Table in use today was agreed by the International Union of Pure Applied Chemistry, IUPAC, in 1985 and now recognises more periods and elements than Dimitri  Mendeleev knew in his day but still all fitting into his concept of  the "Periodic Table" in which Radon is just one element that can be found.
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The Element Radon

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