Berkelium-245 (Bk-245)

Identity

Protons

97

Neutrons

148

Mass number

245

Mass

245.1 ± 1.9 u

Mass excess

61.814 MeV

Spin

3/2-

Stability

Half-life: 4.95 days

Natural occurrence

Not found in nature

Decays to

• electron capture 99.9 % → Cm-245
• alpha 0.12 % → Am-241