Periodic Table/Curium/²⁵²Cm

← 251Cm

²⁵²Cm

Curium-252

Radioactive

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

96

Neutrons (N)

156

Mass Number (A)

252

Atomic Mass

252.084870AMU

Spin / Parity

0+

Binding E/A

7.265keV

Natural Abundance

Trace / None

Half-life

Unknown

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

β⁻

α

Decay Chain

²⁵²CmCurium?

β⁻

α²⁴⁸Pu

²⁵²BkBerkelium1.80 min

β⁻

α²⁴⁸Am

²⁵²CfCalifornium2.65 y

α96.9%

²⁴⁸CmCurium348 ky

α91.6%

2β⁻²⁴⁸Cf

²⁴⁴PuPlutonium81.3 My

α99.9%

2β⁻²⁴⁴Cm7.30%

²⁴⁰UUranium14.1 h

β⁻100.0%

α²³⁶Th

²⁴⁰NpNeptunium1.03 h

β⁻100.0%

²⁴⁰PuPlutonium6.56 ky

α100.0%

34Si²⁰⁶Hg1.30%

²³⁶UUranium23.4 My

α100.0%

²³²ThThorium14.0 Gy

α100.0%

26Ne²⁰⁶Hg2.78%

2β⁻²³²U

²²⁸RaRadium5.75 y

β⁻100.0%

²²⁸AcActinium6.15 h

β⁻100.0%

²²⁸ThThorium1.91 y

α100.0%

20O²⁰⁸Pb1.13%

²²⁴RaRadium3.63 d

α100.0%

¹⁴C²¹⁰Pb4.00%

²²⁰RnRadon55.6 s

α100.0%

2β⁻²²⁰Ra

²¹⁶PoPolonium144 ms

α100.0%

2β⁻²¹⁶Rn

²¹²PbLead10.6 h

β⁻100.0%

²¹²BiBismuth1.01 h

β⁻64.1%

α²⁰⁸Tl35.9%

β⁻α²⁰⁸Pb0.01%

²¹²PoPolonium294 ns

α100.0%

²⁰⁸PbLeadSTABLE

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

Other Isotopes of Curium

231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252

← Back to CuriumData: IAEA NDS · ENSDF