Tl

Thallium-208m

Protons (Z)

81

Neutrons (N)

127

Mass number

208

Half-Life

1.3 µs

Abundance

---

Mass

207.984 u

Mass Excess

-14,943.1 keV

Spin

(0-)

Discovered

2020

Binding energy per nucleon

7,838 keV

Neutron separation energy

1,980 keV

Proton separation energy

5,745 keV

Decay Mode

γThallium-208100%

Decay chain

Thallium-208Z 81 · N 1271.3 µs
γ100%
β⁻100%