Radon, Rn, is a colourless radioactive gaseous element belonging to
Group 0 of the periodic table.
- Atomic Number : 86
- Relative Atomic Mass : 222
- Melting Point : -71 degC
- Boiling Point : -61 degC
- Relative Density : 9.7
Radon was discovered by Dorn in 1900AD.
Radon was isolated by Ramsey and Gray in 19088AD.
Radon is the product of radioactive decay and exists in all
Radon is present in emanations from the soil, and is emitted
from the decay of the radioactive elements in rocks.
Radon is an indoor hazard in some houses built from granite.
Radon is a radioactive gas and the last member of the
Nobel Gas Group. Its decay products are
For this reason, Radon must be handled with care as its radioactive decay products
accumulate on the dust in the air.
Radon finds a limited use in radiotherapy in medicine.
Detection and Analysis
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