86
222
Rn
Radon

Radon

0.009074
222
[Xe] 4f145d106s26p6
211Rn, 220Rn, 222Rn
18
6
p
86
2, 8, 18, 32, 18, 8
1037.073
Rn
0.009074
−71°C, −96°F, 202 K
−61.7°C, −79.1°F, 211.5 K
Friedrich Ernst Dorn
1900
10043-92-2
23240
More Information
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Uses and Properties

Image Explanation

In Brachytherapy, radon serves as a sealed radiation source positioned inside or adjacent to the treatment area in the application of radiation therapy.

Appearance

Radon is a colourless and odourless gas. It is chemically inert, but radioactive.

Uses






See next element of Noble Gas Family: Organesson.

Atomic Data

Atomic Radiues, Non-bonded (A): 2.20
Electron Affinity (kJ mol-1): Not stable
Covalent Radiues (A): 1.46
Electronegativity (Pauling Scale): Unknown
Ionisation Energies (kJ mol-1) 1st 2nd 3rd 4th 5th 6th 7th 8th
1037.073 - - - - - - -

Oxidation States and Isotopes

Common oxidation states 1
Isotope Atomic Mass Natural Abundance Half Life Mode of Decay
211Rn 210.991 - 14.6 h β+,EC
- α
220Rn 220.011 - 55.6 s α
222Rn 222.018 - 3.823 d α

Supply Risk

Relative Supply Risk: Unknown
Crustal Abundance (ppm): 0.0000000000004
Recycle Rate (%): Unknown
Production Conc.(%) : Unknown
Top 3 Producers:
Unknown
Top 3 Reserve Holders:
Unknown
Substitutability: Unknown
Political Stability of Top Producer: Unknown
Political Stability of Top Reserve Holder: Unknown

Pressure and Temperature Data

Specific Heat Capacity: 94
Shear Modulus: Unknown
Young Modulus: Unknown
Bulk Modulus: Unknown
Pressure 400k Pressure 600k Pressure 800k Pressure 1000k Pressure 1200k Pressure 1400k Pressure 1600k Pressure 1800k Pressure 2000k Pressure 2200k Pressure 2400k
- - - - - - - - - - Unknown

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