Periodic Table/Americium/²³³Am

← 232Am234Am →

²³³Am

Americium-233

Radioactive· Half-life: 3.20 min

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

95

Neutrons (N)

138

Mass Number (A)

233

Atomic Mass

233.046468AMU

Spin / Parity

5/2-

Binding E/A

7.358keV

Natural Abundance

Trace / None

Half-life

3.20 min

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

β⁺

α

4.5%

Decay Chain

²³³AmAmericium3.20 min

α4.50%

β⁺²³³Pu

²²⁹NpNeptunium4.00 min

α68.0%

β⁺²²⁹U

²²⁵PaProtactinium1.71 s

α100.0%

²²¹AcActinium52.0 ms

α100.0%

²¹⁷FrFrancium22.0 μs

α100.0%

²¹³AtAstatine125 ns

α100.0%

²⁰⁹BiBismuth20100000000 Gy

α100.0%

²⁰⁵TlThalliumSTABLE

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