Periodic Table/Protactinium/²¹⁹Pa

← 218Pa220Pa →

²¹⁹Pa

Protactinium-219

Radioactive· Half-life: 56.0 ns

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

91

Neutrons (N)

128

Mass Number (A)

219

Atomic Mass

219.019950AMU

Spin / Parity

9/2-

Binding E/A

7.449keV

Natural Abundance

Trace / None

Half-life

56.0 ns

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

α

100.0%

β⁺

Decay Chain

²¹⁹PaProtactinium56.0 ns

α100.0%

β⁺²¹⁹Th

²¹⁵AcActinium171 ms

α100.0%

β⁺²¹⁵Ra0.09%

²¹¹FrFrancium3.10 min

α87.0%

β⁺²¹¹Rn13.0%

²⁰⁷AtAstatine1.81 h

β⁺90.0%

α²⁰³Bi10.0%

²⁰⁷PoPolonium5.80 h

β⁺100.0%

α²⁰³Pb0.02%

²⁰⁷BiBismuth31.2 y

β⁺100.0%

²⁰⁷PbLeadSTABLE

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

Other Isotopes of Protactinium

211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241

← Back to ProtactiniumData: IAEA NDS · ENSDF