Berkelium-247 (Bk-247)

Identity

Protons

97

Neutrons

150

Mass number

247

Mass

247.1 ± 5.6 u

Mass excess

65.490 MeV

Spin

3/2-

Stability

Half-life: 1380 years

Natural occurrence

Not found in nature

Decays to

• alpha → Am-243

Produced by

• Es-251