Tl

Thallium-200

Protons (Z)

81

Neutrons (N)

119

Mass number

200

Half-Life

1.09 d

Abundance

---

Mass

199.971 u

Mass Excess

-27,047.0 keV

Spin

2-

Discovered

1949

Binding energy per nucleon

7,890 keV

Neutron separation energy

7,059 keV

Proton separation energy

4,790 keV

Decay Mode

β⁺Mercury-200100%

Decay chain

Thallium-200Z 81 · N 1191.09 d
β⁺100%