Polonium-218 is radioactive.
218Po (or polonium 218) is an isotope of polonium; 218 is the mass number of this isotope. The exact mass is: 218,0089730(26); the half life of this isotope is 3,10(1) minutes.
Polonium-218 decay to lead-214.
Polonium-218-------------alpha---------------Lead-214
Polonium 210-----------alpha particles-----------Lead 206 Polonium 209-----------alpha particles-----------Lead 205 Polonium 208-----------alpha particles-----------Lead 204 Polonium 214-----------alpha particles-----------Lead 210 Polonium 218-----------alpha particles-----------Lead 214 (99,98 %) Polonium 218-----------beta particles------------Astatin 218 (o,o2 %) For other isotopes see the list at: http://en.wikipedia.org/wiki/Polonium#Isotopes
The beta minus decay of polonium isotopes is extremely rare. Beta decay involve the increase of the atomic number with 1.Example: Po-218----------------beta minus---------------At-218
Polonium-218 has 84 protons, 84 electrons and 134 neutrons.Radon-222 has 86 protons, 86 electrons and 136 neutrons.
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Polonium is odorless.
Polonium has not a taste.
Polonium is a metal.
Polonium has no odor.
Polonium is not an insulator.The electrical resistivity of polonium is: 0, 40 microohm.meter.