Curium-247 (Cm-247)

Identity

Protons

96

Neutrons

151

Mass number

247

Mass

247.1 ± 4.1 u

Mass excess

65.533 MeV

Spin

9/2-*

Stability

Half-life: 1.56 × 10⁷ years

Natural occurrence

Not found in nature

Decays to

• alpha → Pu-243 (no page)

Produced by

• Cf-251