Tantalum-177 (Ta-177)

Identity

Protons

73

Neutrons

104

Mass number

177

Mass

176.9 ± 3.6 u

Mass excess

-51.715 MeV

Spin

7/2+*

Stability

Half-life: 2.35 days

Natural occurrence

Not found in nature

Decays to

• positron emission → Hf-177