Properties

CAS Number22537-19-5
PubChem CIDna
Atomic Radius-
Atomic Volume-
Atomic Weight[262]
Blockd
Boiling Point-
Bulk Modulus
CategoryActinides
Crystal Structure
Color
Covalent Radius-
Density-
Electrical Resistivity
Electron Configuration[Rn] 5f14 7s2 7p1
Electrons per shell2, 8, 18, 32, 32, 8, 3
Electronegativity1.3
Electrons103
Groupna
Heat of Fusionna
Heat of Vaporizationna
Ionization Potential4.9
Magnetic Ordering
Magnetic Susceptibility
Mass[262]
Mass Number103
Melting Point1,626.85
NameLawrencium
Neutrons159
Atomic Number262
Oxidation States3
Period7
PhaseSolid
Poisson Ratio
Protons103
Shear Modulus
Specific Heat Capacity-
SymbolLr
Thermal Conductivity0.1
Van der Waals radius
Young's Modulus
Abundance
Abundance in Earth's crustna
Abundance in Universena
Lr Lawrencium 103 (262) 7 d 103 [Rn] 5f14 6d1 7s2 2 8 18 32 32 8 3 None Unknown {"1":"470"} 3 10.0 1 10 h 14.4h AlphaEmission TransitionMetal, Metal, Radioactive, Synthetic lor-ENS-i-em Synthetic radioactive metal. It has no significant commercial applications. Produced by bombarding californium with boron ions. _zBsnnJOkyA Lawrencium
Radon was discovered in 1900 by Friedrich Ernst Dorn in Halle, Germany.

He reported some experiments in which he noticed that radium compounds emanate a radioactive gas.

In 1910, Sir William Ramsay and Robert Whytlaw-Gray isolated radon, determined its density, and determined that it was the heaviest known gas. The name was derived from radium; called niton at first, from the Latin word nitens meaning shining 103 1961 Albert Ghiorso, Torbjorn Sikkeland, Almon Larsh, Robert M. Latimer United States The origin of the Amercian Chemical Society preferred name is Ernest O. "Lawrence", inventor of the cyclotron

Isotopes of Radon

Standard Atomic Weight

Stable Isotopes

Unstable Isotopes

251Lr 252Lr 253Lr 254Lr 255Lr 256Lr 257Lr 258Lr 259Lr 260Lr 261Lr 262Lr 263Lr 264Lr 265Lr 266Lr

Radon is highly radioactive and a carcinogen
Upon condensation, radon glows because of the intense radiation it produces
Radon is used in hydrologic research that studies the interaction between ground water and streams.

Radon has been produced commercially for use in radiation therapy.

Radon has been used in implantable seeds, made of gold or glass, primarily used to treat cancers.