PhysLink.com Logo

Rn - Radon

Radon

 Radon 
Rn
Atomic Number: 86
Atomic Weight: -222.0
Element Type: Noble Gas
Crystal Structure: Cubic Face Centered
Melting Point: -71.0°C = -95.8°F = 202.15 K
Boiling Point: -61.7°C = -79.06°F = 211.45 K
Critical Temp: 104.0°C = 219.2°F = 377.15 K
Atomic Radius: 1.34 Å (Å = Angstrom = 10-10 m)
Covalent Radius: Å
Electronegativity:

History

(From radium; called niton at first, L. nitens, shining) The element was discovered in1900 by Dorn, who called it radium emanation. In 1908 Ramsay and Gray, who named it niton,isolated the element and determined its density, finding it to be the heaviest known gas.It is essentially inert and occupies the last place in the zero group of gases in thePeriodic Table. Since 1923, it has been called radon.


Sources





Support US

Our server costs have gone up and our advertising revenue has gone down. You do the math! If you find our site useful, consider donating to keep us going. Thanks!


Science Quote

'The mathematician's patterns, like the painter's or the poets, must be beautiful; the ideas, like the colours or the words, must fit together in a harmonious way. Beauty is the first test: there is no permanent place in the world for ugly mathematics.'

Godfrey Hardy
(1877-1947)





All rights reserved. © Copyright '1995-'2018 PhysLink.com   Privacy Statement | Cookie Policy