Tl

Thallium-198n

Protons (Z)

81

Neutrons (N)

117

Mass number

198

Half-Life

150.0 ns

Abundance

---

Mass

197.971 u

Mass Excess

-26,842.0 keV

Spin

(5+)

Discovered

1977

Binding energy per nucleon

7,887 keV

Neutron separation energy

6,559 keV

Proton separation energy

3,591 keV

Decay Mode

γThallium-198100%

Decay chain

Thallium-198Z 81 · N 117150.0 ns
γ100%
β⁺100%