Periodic Table/Americium/²²³Am

224Am →

²²³Am

Americium-223

Radioactive· Half-life: 10.0 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

95

Neutrons (N)

128

Mass Number (A)

223

Atomic Mass

223.045840AMU

Spin / Parity

9/2-

Binding E/A

7.329keV

Natural Abundance

Trace / None

Half-life

10.0 ms

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

α

100.0%

β⁺

Decay Chain

²²³AmAmericium10.0 ms

α100.0%

β⁺²²³Pu

²¹⁹NpNeptunium570 μs

α100.0%

²¹⁵PaProtactinium14.0 ms

α100.0%

²¹¹AcActinium213 ms

α100.0%

β⁺²¹¹Ra

²⁰⁷FrFrancium14.8 s

α95.0%

β⁺²⁰⁷Rn

²⁰³AtAstatine7.40 min

β⁺69.0%

α¹⁹⁹Bi31.0%

²⁰³PoPolonium36.7 min

β⁺99.9%

α¹⁹⁹Pb0.11%

²⁰³BiBismuth11.8 h

β⁺100.0%

²⁰³PbLead2.16 d

EC100.0%

²⁰³TlThalliumSTABLE

10-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