Periodic Table/Neptunium/²¹⁹Np

220Np →

²¹⁹Np

Neptunium-219

Radioactive· Half-life: 570 μs

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

93

Neutrons (N)

126

Mass Number (A)

219

Atomic Mass

219.031602AMU

Spin / Parity

9/2-

Binding E/A

7.388keV

Natural Abundance

Trace / None

Half-life

570 μs

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

α

100.0%

Decay Chain

²¹⁹NpNeptunium570 μs

α100.0%

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

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

Other Isotopes of Neptunium

219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245

← Back to NeptuniumData: IAEA NDS · ENSDF