Periodic Table/Americium/²⁴⁷Am

← 246Am248Am →

²⁴⁷Am

Americium-247

Radioactive· Half-life: 23.0 min

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

95

Neutrons (N)

152

Mass Number (A)

247

Atomic Mass

247.072092AMU

Spin / Parity

5/2

Binding E/A

7.302keV

Natural Abundance

Trace / None

Half-life

23.0 min

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

β⁻

100.0%

Decay Chain

²⁴⁷AmAmericium23.0 min

β⁻100.0%

²⁴⁷CmCurium15.6 My

α100.0%

²⁴³PuPlutonium4.96 h

β⁻100.0%

²⁴³AmAmericium7.35 ky

α100.0%

²³⁹NpNeptunium2.36 d

β⁻100.0%

α²³⁵Pa

²³⁹PuPlutonium24.1 ky

α100.0%

²³⁵UUranium704 My

α100.0%

20Ne²¹⁵Pb8.00%

25Ne²¹⁰Pb8.00%

28Mg²⁰⁷Hg8.00%

²³¹ThThorium1.06 d

β⁻100.0%

²³¹PaProtactinium32.6 ky

α100.0%

24Ne²⁰⁷Tl13.4%

23F²⁰⁸Pb9.90%

²²⁷AcActinium21.8 y

β⁻98.6%

α²²³Fr1.38%

²²⁷ThThorium18.7 d

α100.0%

²²³RaRadium11.4 d

α100.0%

¹⁴C²⁰⁹Pb8.90%

²¹⁹RnRadon3.96 s

α100.0%

²¹⁵PoPolonium1.78 ms

α100.0%

β⁻²¹⁵At2.30%

²¹¹PbLead36.2 min

β⁻100.0%

²¹¹BiBismuth2.14 min

α100.0%

β⁻²¹¹Po0.28%

²⁰⁷TlThallium4.77 min

β⁻100.0%

²⁰⁷PbLeadSTABLE

18-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