Terbium-161 (Tb-161)

Identity

Protons

65

Neutrons

96

Mass number

161

Mass

160.9 ± 1.3 u

Mass excess

-67.462 MeV

Spin

3/2+*

Stability

Half-life: 6.95 days

Natural occurrence

Not found in nature

Decays to

• beta minus → Dy-161