Periodic Table/Americium/²²⁶Am

← 225Am227Am →

²²⁶Am

Americium-226

Radioactive

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

95

Neutrons (N)

131

Mass Number (A)

226

Atomic Mass

226.046130AMU

Spin / Parity

—

Binding E/A

7.338keV

Natural Abundance

Trace / None

Half-life

Unknown

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

α

SF

Decay Chain

²²⁶AmAmericium?

α

²²²NpNeptunium480 ns

α100.0%

²¹⁸PaProtactinium108 μs

α100.0%

²¹⁴AcActinium8.20 s

α93.0%

β⁺²¹⁴Ra7.00%

²¹⁰FrFrancium3.18 min

α71.0%

β⁺²¹⁰Rn

²⁰⁶AtAstatine30.6 min

β⁺99.1%

α²⁰²Bi0.90%

²⁰⁶PoPolonium8.80 d

β⁺94.5%

α²⁰²Pb5.45%

²⁰⁶BiBismuth6.24 d

β⁺100.0%

²⁰⁶PbLeadSTABLE

9-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