Isotopes of Terbium

Notable Isotopes

157Tb [92 neutrons]

Abundance: synthetic

Half life: 71 years [ Electron Capture ]

Decay Energy: 0.060 MeV

Decays to 157Gd.

158Tb [93 neutrons]

Abundance: synthetic

Half life: 180 years [ Electron Capture ]

Decay Energy: 1.220 MeV

Decays to 158Gd.

Half life: 180 years [ beta- ]

Decay Energy: 0.937 MeV

Decays to 158Dy.

159Tb [94 neutrons]

Abundance: 100%

Stable with 94 neutrons