Periodic Table/Lead/¹⁸¹Pb

← 180Pb182Pb →

¹⁸¹Pb

Lead-181

Radioactive· Half-life: 39.0 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

82

Neutrons (N)

99

Mass Number (A)

181

Atomic Mass

180.996661AMU

Spin / Parity

9/2-

Binding E/A

7.503keV

Natural Abundance

Trace / None

Half-life

39.0 ms

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

α

100.0%

β⁺

Decay Chain

¹⁸¹PbLead39.0 ms

α100.0%

β⁺¹⁸¹Tl

¹⁷⁷HgMercury117 ms

α100.0%

β⁺¹⁷⁷Au

¹⁷³PtPlatinum382 ms

α86.0%

β⁺¹⁷³Ir

¹⁶⁹OsOsmium3.46 s

β⁺86.3%

α¹⁶⁵W13.7%

¹⁶⁹ReRhenium8.10 s

α0.01%

β⁺¹⁶⁹W

¹⁶⁵TaTantalum31.0 s

β⁺100.0%

¹⁶⁵HfHafnium1.27 min

β⁺100.0%

¹⁶⁵LuLutetium10.7 min

β⁺100.0%

¹⁶⁵YbYtterbium9.90 min

β⁺100.0%

¹⁶⁵TmThulium1.25 d

β⁺100.0%

¹⁶⁵ErErbium10.4 h

EC100.0%

¹⁶⁵HoHolmiumSTABLE

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

Other Isotopes of Lead

178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220

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