ThoriumActiniumRadiumFranciumRadonAstatinePoloniumBismuthLeadThallium
Actinides
Alkali Metals
Alkaline Earth Metals
Halogens
Metalloids
Noble Gases
Post Transition Metals
Transition Metals
90232Th1.41e+10Years
α
88228Ra5.7Years
β⁻
89228Ac6.1Hours
β⁻
90228Th1.9Years
α
88224Ra3.6Days
α
86220Rn55Seconds
α
84216Po0.14Seconds
α
82212Pb10.6Hours
β⁻
83212Bi61Minutes
α
81208Tl3.1Minutes
β⁻
82208PbStable
β⁻
84212Po3e-07Seconds
α