Isotopes of radon (Rn)
When uranium radiates alpha particles, it transforms into thorium. Thorium is a radioactive element that is produced as a result of the decay of uranium through alpha emission.
Alpha decay
Alpha decay
Francium is a naturally occurring radioactive element that is produced as a decay product of uranium and thorium. It is found in tiny amounts in uranium and thorium ores. Francium was first discovered in 1939 by Marguerite Perey in France.
Radon is a radioactive gas in the decay series of uranium and thorium.
This is an alpha decay.
All radioactive isotopes decay because they are unstable; uranium-238 decay to thorium-234 by beta (-) decay. The half life of 238U is very great: 4,468.109 years.
Thorium-234 does not change into Uranium-234. Thorium-234 undergoes radioactive decay to form Protactinium-234, which then decays to form Uranium-234. This process happens over multiple steps through alpha and beta decay mechanisms.
The first radioactive element formed when uranium-238 decays is thorium-234. Uranium-238 undergoes alpha decay to form thorium-234.
Radon is a natural chemical element; it can be found in the radioactive decay series of uranium and thorium.
internal heating due to the decay of the radioactive isotopes of uranium, thorium, and potassium
When uranium undergoes alpha decay, it emits an alpha particle (which consists of 2 protons and 2 neutrons) and transforms into thorium. The mass of the thorium produced can be determined by subtracting the mass of the emitted alpha particle from the original mass of the uranium nuclide. The specific mass of thorium will depend on the isotope of uranium that is decaying, but it generally corresponds to the mass number of the uranium minus 4 (for the alpha particle).