ENG GEO
There are two main types of isotopes – stable and unstable or radioactive. Stable isotopes have a stable combination of protons and neutrons that do not undergo decay, whereas radioactive isotopes have an unstable combination of protons and neutrons resulting in radioactive decay.....

Radon is a natural radioactive noble gas that is colorless, odorless and tasteless. It is a product of the radioactive decay of uranium that is present in soil and rocks. Every year people receive a certain dose of radiation and a share of radon represents 55% of the total. Radon can escape relatively easily from soil and rocks and accumulate in buildings. When radon gas is inhaled, densely ionizing alpha particles emitted by deposited short-lived decay products of radon can interact with ......