The half life of polonium-212 is 299(2) nanoseconds.
Po-216- -----------------> Pb-212
Polonium 212 has 84 protons and 128 neutrons. An alpha particle is 2 protons and 2 neutrons, so the daughter nucleus will have 82 protons and 126 neutrons, making it lead 208.
Polonium is a metal.
Polonium has no odor.
Polonium is not flammable.
Polonium-212 has not uses.
Polonium-212 is formed by beta decay of bismuth-212.
431 nanoseconds
After the alpha decay of polonium-212, there is lead-208 212/84 Po --------> 208/82 Pb + 4/2 He Lead 208
You cannot mine polonium as the longest lived isotope, polonium-209 has a halflife of only 100 years and most isotopes of polonium have halflives measured in seconds to minutes.Traces of polonium can be found in any uranium ore as it is a daughter of uranium decay.Usable amounts of polonium are manufactured using nuclear reactors.
Lead-208 is formed by alpha decay (emission of alpha particles) from polonium-212.
Po-216- -----------------> Pb-212
Polonium-212 loses 2 protons and 2 neutrons when it decays to lead-208. These 2 protons and 2 neutrons are lost as a single Helium nucleus. In other words, it is an alpha decay.
Rub it off Radioactive polonium brushes available in any photoshop will do this. The alpha particles emitted by the polonium ionize air and the ionized air carries off the static charge. These brushes should be bought new at least every year from a fresh batch at the photoshop due to the short halflife of polonium.
Polonium 212 has 84 protons and 128 neutrons. An alpha particle is 2 protons and 2 neutrons, so the daughter nucleus will have 82 protons and 126 neutrons, making it lead 208.
The reaction is:Po-216----------------alpha particle-----------------Pb-212
In this case alpha particles are emitted.