Radon vs Radon Decay Products
Radioactive Decay
The Meaning of Half Life
Half Life is the time required for half of the atoms to decay. It is not the time for all of the atoms to decay. Usually by the time ten half-lives have passed, there is so little of the substance left that it can be considered zero, but in reality, it keeps decaying infinitely. Radon’s half-life is 3.8 days – plenty of time to get into a house and into the lungs of its occupants!
Radon Decay Products