Periodic Table/Californium/²³⁷Cf

238Cf →

²³⁷Cf

Californium-237

Radioactive· Half-life: 800 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

98

Neutrons (N)

139

Mass Number (A)

237

Atomic Mass

237.062199AMU

Spin / Parity

5/2+

Binding E/A

7.292keV

Natural Abundance

Trace / None

Half-life

800 ms

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

α

70.0%

SF

30.0%

β⁺

Decay Chain

²³⁷CfCalifornium800 ms

α70.0%

β⁺²³⁷Bk

²³³CmCurium27.0 s

β⁺80.0%

α²²⁹Pu20.0%

²³³AmAmericium3.20 min

α4.50%

β⁺²³³Pu

²²⁹NpNeptunium4.00 min

α68.0%

β⁺²²⁹U

²²⁵PaProtactinium1.71 s

α100.0%

²²¹AcActinium52.0 ms

α100.0%

²¹⁷FrFrancium22.0 μs

α100.0%

²¹³AtAstatine125 ns

α100.0%

²⁰⁹BiBismuth20100000000 Gy

α100.0%

²⁰⁵TlThalliumSTABLE

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

Other Isotopes of Californium

237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256

← Back to CaliforniumData: IAEA NDS · ENSDF