Periodic Table/Uranium/²²²U

← 221U223U →

²²²U

Uranium-222

Radioactive· Half-life: 4.70 μs

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

92

Neutrons (N)

130

Mass Number (A)

222

Atomic Mass

222.026058AMU

Spin / Parity

0+

Binding E/A

7.426keV

Natural Abundance

Trace / None

Half-life

4.70 μs

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

α

100.0%

β⁺

Decay Chain

²²²UUranium4.70 μs

α100.0%

β⁺²²²Pa

²¹⁸ThThorium122 ns

α100.0%

²¹⁴RaRadium2.44 s

α99.9%

β⁺²¹⁴Fr0.06%

²¹⁰RnRadon2.40 h

α96.0%

β⁺²¹⁰At

²⁰⁶PoPolonium8.80 d

β⁺94.5%

α²⁰²Pb5.45%

²⁰⁶BiBismuth6.24 d

β⁺100.0%

²⁰⁶PbLeadSTABLE

7-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