Periodic Table/Plutonium/²²⁹Pu

← 228Pu230Pu →

²²⁹Pu

Plutonium-229

Radioactive· Half-life: 1.52 min

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

94

Neutrons (N)

135

Mass Number (A)

229

Atomic Mass

229.040145AMU

Spin / Parity

3/2+

Binding E/A

7.377keV

Natural Abundance

Trace / None

Half-life

1.52 min

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

α

50.0%

β⁺

50.0%

SF

7.0%

Decay Chain

²²⁹PuPlutonium1.52 min

α50.0%

β⁺²²⁹Np50.0%

²²⁵UUranium62.0 ms

α100.0%

²²¹ThThorium1.75 ms

α100.0%

²¹⁷RaRadium1.95 μs

α100.0%

²¹³RnRadon19.5 ms

α100.0%

²⁰⁹PoPolonium124 y

α99.5%

β⁺²⁰⁹Bi0.45%

²⁰⁵PbLead17.0 My

EC100.0%

²⁰⁵TlThalliumSTABLE

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

Other Isotopes of Plutonium

221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247

← Back to PlutoniumData: IAEA NDS · ENSDF