Periodic Table/Protactinium/²¹⁶Pa

← 215Pa217Pa →

²¹⁶Pa

Protactinium-216

Radioactive· Half-life: 105 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

91

Neutrons (N)

125

Mass Number (A)

216

Atomic Mass

216.019135AMU

Spin / Parity

5+

Binding E/A

7.444keV

Natural Abundance

Trace / None

Half-life

105 ms

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

α

100.0%

β⁺

Decay Chain

²¹⁶PaProtactinium105 ms

α100.0%

β⁺²¹⁶Th

²¹²AcActinium895 ms

α100.0%

β⁺²¹²Ra

²⁰⁸FrFrancium59.1 s

α89.0%

β⁺²⁰⁸Rn11.0%

²⁰⁴AtAstatine9.12 min

β⁺96.2%

α²⁰⁰Bi3.80%

²⁰⁴PoPolonium3.52 h

β⁺99.3%

α²⁰⁰Pb0.67%

²⁰⁴BiBismuth11.2 h

β⁺100.0%

²⁰⁴PbLeadSTABLE

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