Radon is a decay product of uranium, which is relatively common in the Earth's crust, but generally concentrated in ore-bearing rocks scattered around the world.
There are no elements in Radon, Radon is an element in its own right.
Radon is NOT reactive.
No. Radon is odorless.
Radon is odorless and poisonous.
Radon is a gas, no ductility.
Radon is a gas, no hardness.
The chemical symbol of radon is Rn.
No, not radon. Radon is known to cause lung cancer.
Radon testing lets you test for radon gas. Radon gas is harmful to your health and cause things such as cancer.
You need a radon detector to perform radon testing. Essentially it's a geiger counter. Radon is radioactive and you locate it just the same way. Many radon alarms are available for areas where Radon is a problem. You would need a radon detector for radon testing. You can purchase one from amazon.com for $130 shipped. http://www.amazon.com/dp/B000CEAY64
Radon oxide is a compound that forms when radon gas reacts with oxygen. It is a radioactive compound and can be harmful if inhaled or ingested. Radon oxide is not commonly found in nature due to radon's short half-life.
Radon has 86 protons.