Curium-241 (Cm-241)

Identity

Protons

96

Neutrons

145

Mass number

241

Mass

241.1 ± 1.7 u

Mass excess

53.702 MeV

Spin

1/2+

Stability

Half-life: 32.8 days

Natural occurrence

Not found in nature

Decays to

• electron capture 99.0 % → Am-241
• alpha 1.0 % → Pu-237