Periodic Table/Americium/²³²Am

← 231Am233Am →

²³²Am

Americium-232

Radioactive· Half-life: 1.31 min

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

95

Neutrons (N)

137

Mass Number (A)

232

Atomic Mass

232.046613AMU

Spin / Parity

1-

Binding E/A

7.355keV

Natural Abundance

Trace / None

Half-life

1.31 min

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

β⁺

97.0%

α

β⁺SF

0.1%

Decay Chain

²³²AmAmericium1.31 min

β⁺97.0%

α²²⁸Np

²³²PuPlutonium33.7 min

α20.0%

EC²³²Np

²²⁸UUranium9.10 min

α97.5%

EC²²⁸Pa2.50%

²²⁴ThThorium1.04 s

α100.0%

2β⁺²²⁴Ra

²²⁰RaRadium18.1 ms

α100.0%

²¹⁶RnRadon29.0 μs

α100.0%

²¹²PoPolonium294 ns

α100.0%

²⁰⁸PbLeadSTABLE

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

Other Isotopes of Americium

223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249

← Back to AmericiumData: IAEA NDS · ENSDF