Periodic Table/Protactinium/²¹⁵Pa

← 214Pa216Pa →

²¹⁵Pa

Protactinium-215

Radioactive· Half-life: 14.0 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

91

Neutrons (N)

124

Mass Number (A)

215

Atomic Mass

215.019114AMU

Spin / Parity

9/2-

Binding E/A

7.441keV

Natural Abundance

Trace / None

Half-life

14.0 ms

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

α

100.0%

Decay Chain

²¹⁵PaProtactinium14.0 ms

α100.0%

²¹¹AcActinium213 ms

α100.0%

β⁺²¹¹Ra

²⁰⁷FrFrancium14.8 s

α95.0%

β⁺²⁰⁷Rn

²⁰³AtAstatine7.40 min

β⁺69.0%

α¹⁹⁹Bi31.0%

²⁰³PoPolonium36.7 min

β⁺99.9%

α¹⁹⁹Pb0.11%

²⁰³BiBismuth11.8 h

β⁺100.0%

²⁰³PbLead2.16 d

EC100.0%

²⁰³TlThalliumSTABLE

8-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