Periodic Table/Actinium/²¹⁸Ac

← 217Ac219Ac →

²¹⁸Ac

Actinium-218

Radioactive· Half-life: 1.00 μs

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

89

Neutrons (N)

129

Mass Number (A)

218

Atomic Mass

218.011649AMU

Spin / Parity

1-

Binding E/A

7.494keV

Natural Abundance

Trace / None

Half-life

1.00 μs

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

α

100.0%

Decay Chain

²¹⁸AcActinium1.00 μs

α100.0%

²¹⁴FrFrancium5.51 ms

α100.0%

²¹⁰AtAstatine8.10 h

β⁺99.8%

α²⁰⁶Bi0.17%

²¹⁰PoPolonium138 d

α100.0%

²⁰⁶PbLeadSTABLE

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

Other Isotopes of Actinium

205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237

← Back to ActiniumData: IAEA NDS · ENSDF