Periodic Table/Uranium/²²⁹U

← 228U230U →

²²⁹U

Uranium-229

Radioactive· Half-life: 57.8 min

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

92

Neutrons (N)

137

Mass Number (A)

229

Atomic Mass

229.033506AMU

Spin / Parity

3/2+

Binding E/A

7.415keV

Natural Abundance

Trace / None

Half-life

57.8 min

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

β⁺

80.0%

α

20.0%

Decay Chain

²²⁹UUranium57.8 min

β⁺80.0%

α²²⁵Th20.0%

²²⁹PaProtactinium1.55 d

EC99.5%

α²²⁵Ac0.49%

²²⁹ThThorium7.92 ky

α100.0%

²²⁵RaRadium14.8 d

β⁻100.0%

²²⁵AcActinium9.92 d

α100.0%

¹⁴C²¹¹Bi5.30%

²²¹FrFrancium4.80 min

α100.0%

¹⁴C²⁰⁷Tl8.80%

β⁻²²¹Ra0.00%

²¹⁷AtAstatine32.6 ms

α100.0%

β⁻²¹⁷Rn0.01%

²¹³BiBismuth45.6 min

β⁻97.9%

α²⁰⁹Tl2.09%

²¹³PoPolonium3.71 μs

α100.0%

²⁰⁹PbLead3.23 h

β⁻100.0%

²⁰⁹BiBismuth20100000000 Gy

α100.0%

²⁰⁵TlThalliumSTABLE

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

Other Isotopes of Uranium

215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243

← Back to UraniumData: IAEA NDS · ENSDF