Radon element (Rn) is in group 18 and period 6 of a periodic table. Radon is in the p-block and it is classified as a noble gas element on the periodic table.
There is a lot more information related to radon which is mentioned in the Information Table given below.
So let’s dive right into it!
Table of contents
- Radon element (Information Table)
- Radon element in Periodic table
- Facts about Radon
- Properties of Radon
Radon Element (Information Table)
The important data related to radon element is given in the table below.
|Appearance of radon||Colorless gas|
|Atomic number of radon||86|
|Symbol of radon||Rn|
|Atomic mass of radon (most stable isotope)||222 u|
|Protons, Neutrons & Electrons in radon||Protons: 86, Neutrons: 136, Electrons: 86|
|State of radon (at STP)||Gas|
|Group number of radon in periodic table||18|
|Period number of radon in periodic table||6|
|Block of radon in periodic table||p-block|
|Category of radon||Noble gas|
|Bohr model or Electrons per shell or Electrons arrangement in radon||2, 8, 18, 32, 18, 8|
|Electron configuration of radon||[Xe] 4f14 5d10 6s2 6p6|
|Orbital diagram of radon|
|Valence electrons in radon||8|
|Atomic radius of radon (van der Waals radius)||220 picometers|
|Density of radon||9.73 g/L|
|1st ionization energy of radon||10.745 eV|
|Main isotope of radon||222Rn|
|Melting point of radon||202 K or -71 °C or -96 °F|
|Boiling point of radon||211.5 K or -61.7 °C or -79.1 °F|
|Crystal structure of radon||Face Centered Cubic (FCC)|
|Discovery of radon||By Ernest Rutherford and Robert Owens (in 1899)|
Also see: Interactive Periodic Table (It has rotating bohr models as well as many other details of all the 118 elements in a single periodic table).
Radon element in Periodic table
The Radon element (Rn) has the atomic number 86 and is located in group 18 and period 6. Radon is a nonmetal and it is classified as a noble gas element.
Click on above elements in the periodic table to see their information.
Facts about radon
Here are a few interesting facts about the radon element.
- Radon was given its name from the element “radon”. This is because the radon is obtained from the decay of radium.
- Ernest Rutherford and Robert Owens discovered radon in 1899.
- Radon is also called “Cancer causing radioactive gas”, because it is responsible for cancer in humans.
- Out of all the gases on the periodic table, radon is the heaviest known gas.
- Radon gas is available from the radioactive decay of radium, uranium and thorium.
Properties of radon
Here is a list of some physical properties and chemical properties of radon.
Physical properties of radon
- Radon is a colorless, tasteless and odorless gas.
- Radon is the heaviest known gas and its density is 9.73 g/L.
- When radon gas is cooled below its freezing temperature, it emits a light which changes from yellowish to reddish orange.
- There are many isotopes of radon and all those isotopes are radioactive in nature.
Chemical properties of radon
- Radon is an inert gas and because of this reason it does not show any chemical reaction with other elements. But it shows some reaction only under extreme conditions.
- Radon gas is slightly soluble in water and other organic solvents.
- Everyone breathes small amounts of radon gas, but that’s fine. If radon is inhaled in large amounts, then it causes lung cancer.
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- Atomic Data for Radon (Rn). (n.d.). Atomic Data for Radon (Rn). https://physics.nist.gov/PhysRefData/Handbook/Tables/radontable1.htm
- Prohaska, T., et al. (2022, May 1). Standard atomic weights of the elements 2021 (IUPAC Technical Report). Pure and Applied Chemistry, 94(5), 573–600. https://doi.org/10.1515/pac-2019-0603
- Haynes, W. M. (Ed.). (2014, June 4). CRC Handbook of Chemistry and Physics. https://doi.org/10.1201/b17118
- Kaye, G W.C., & Laby, T H. Tables of physical and chemical constants. 15th Edition. United States.
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- Radon. (2023, January 25). Radon. https://www.who.int/news-room/fact-sheets/detail/radon-and-health
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