Periodic Table/Thorium/²¹⁹Th

← 218Th220Th →

²¹⁹Th

Thorium-219

Radioactive· Half-life: 1.02 μs

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

90

Neutrons (N)

129

Mass Number (A)

219

Atomic Mass

219.015526AMU

Spin / Parity

9/2+

Binding E/A

7.474keV

Natural Abundance

Trace / None

Half-life

1.02 μs

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

α

100.0%

β⁺

Decay Chain

²¹⁹ThThorium1.02 μs

α100.0%

β⁺²¹⁹Ac

²¹⁵RaRadium1.67 ms

α100.0%

²¹¹RnRadon14.6 h

β⁺72.6%

α²⁰⁷Po27.4%

²¹¹AtAstatine7.21 h

EC58.2%

α²⁰⁷Bi41.8%

²¹¹PoPolonium516 ms

α100.0%

²⁰⁷PbLeadSTABLE

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

Other Isotopes of Thorium

208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239

← Back to ThoriumData: IAEA NDS · ENSDF