Radon
From Citizendium - Reading time: 1 min
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Radon is a chemical element, having the chemical symbol Rn. Its atomic number (the number of protons) is 86. It has a standard atomic weight of 222 g•mol −1 and is a solid in its elemental form.
Radon is a monatomic noble gas. At a pressure of 101.325 kPa, it has a boiling point of −71 °C and a melting point of −61.7 °C.
Licensed under CC BY-SA 3.0 | Source: https://citizendium.org/wiki/Radon24 views | Status: cached on October 28 2024 16:49:31↧ Download this article as ZWI file
EncycloReader
is supported by the 
KSF