Periodic Table/Polonium/¹⁸⁷Po

← 186Po188Po →

¹⁸⁷Po

Polonium-187

Radioactive· Half-life: 1.40 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

84

Neutrons (N)

103

Mass Number (A)

187

Atomic Mass

187.003031AMU

Spin / Parity

1/2-

Binding E/A

7.475keV

Natural Abundance

Trace / None

Half-life

1.40 ms

Decay Modesoverview · half-life · α · β⁻ · β⁺

α

100.0%

β⁺

Decay Chain

¹⁸⁷PoPolonium1.40 ms

α100.0%

β⁺¹⁸⁷Bi

¹⁸³PbLead535 ms

α100.0%

β⁺¹⁸³Tl

¹⁷⁹HgMercury1.05 s

α75.0%

β⁺¹⁷⁹Au25.0%

β⁺p¹⁷⁸Pt0.15%

¹⁷⁵PtPlatinum2.43 s

α64.0%

β⁺¹⁷⁵Ir

¹⁷¹OsOsmium8.30 s

α1.80%

β⁺¹⁷¹Re

¹⁶⁷WTungsten19.9 s

β⁺100.0%

α¹⁶³Hf0.04%

¹⁶⁷TaTantalum1.33 min

β⁺100.0%

¹⁶⁷HfHafnium2.05 min

β⁺100.0%

¹⁶⁷LuLutetium51.5 min

β⁺100.0%

¹⁶⁷YbYtterbium17.5 min

β⁺100.0%

¹⁶⁷TmThulium9.25 d

EC100.0%

¹⁶⁷ErErbiumSTABLE

12-step decay chain → stable · Primary path shown · branching ratios indicated

Other Isotopes of Polonium

186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227

← Back to PoloniumData: IAEA NDS · ENSDF