Thallium-202 (Tl-202)

Identity

Protons

81

Neutrons

121

Mass number

202

Mass

202.0 ± 2.0 u

Mass excess

-25.980 MeV

Spin

2-*

Stability

Half-life: 12.3 days

Natural occurrence

Not found in nature

Decays to

• electron capture → Hg-202

Produced by

• Pb-202