The Element Radon


Radon is a colorless, naturally occurring, radioactive noble gas that is formed from the decay of radium. It is one of the heaviest substances that exist in the form of a gas under normal conditions and thus, is classified as a health hazard. Statistics show that radon gas from natural sources can accumulate in buildings and causes 21,000 lung cancer deaths per annum in the United States alone.

Medically, radon in controlled quantities are said to relieve arthritis although it had not been clinically approved as suitable. Radon is further used in cancer treatments obtained from the decay of a radium chloride sources.

Atomic Number & Chemical Properties


Element Basics:

Chemical Symbol: Rn
Atomic Number: 86
Atomic Weight: 222.0176
Element Classification: Inert Gas
Discovered By: Fredrich Ernst Dorn
Date of Discovery: 1898 (Germany)
Origin of Name: Variation of the name of another element, radium.

How to Recognize it at a Party:

Heavy radioactive gas

Seriously Atomic Information:

Density (g/cc): 4.4 (@ -62°C)
Melting Point (°K): 202
Boiling Point (°K): 211.4
Atomic Radius (pm): n/a
Atomic Volume (cc/mol): n/a
Covalent Radius (pm): n/a
Ionic Radius: n/a
Pauling Negativity Number: n/a
First Ionizing Energy (kJ/mol): 1036.5
Oxidation States: n/a
Electronic Configuration: [Xe] 4f14 5d10 6s2 6p6

Getting Intimate with Radon:

Lattice Structure: Face-Centered Cubic (FCC)
Lattice Constant (Å): n/a
Lattice C/A Ratio: n/a
Specific Heat (@20°C J/g mol): 0.094
Fusion Heat (kJ/mol): n/a
Evaporation Heat (kJ/mol): 18.1
Thermal Conductivity (@25°C W/m K):
Debye Temperature (°K): n/a


Society's Questions About Radon:

Have you ever wondered what everyone else in the world thinks about Radon? Is anyone else looking for it too? If so, why? What do they want?

The following list shows the most common online questions about the element Radon. Are your questions the same or different from everyone else's?

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