Periodic Table/Terbium/¹⁵⁸Tb

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¹⁵⁸Tb

Terbium-158

Radioactive· Half-life: 180 y

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

65

Neutrons (N)

93

Mass Number (A)

158

Atomic Mass

157.925420AMU

Spin / Parity

3-

Binding E/A

7.979keV

Natural Abundance

Trace / None

Half-life

180 y

Decay Modesoverview · half-life · α · β⁻ · β⁺

β⁺

83.4%

β⁻

16.6%

Decay Chain

¹⁵⁸TbTerbium180 y

β⁺83.4%

β⁻¹⁵⁸Dy16.6%

¹⁵⁸GdGadoliniumSTABLE

2-step decay chain → stable · Primary path shown · branching ratios indicated

Other Isotopes of Terbium

135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174

← Back to TerbiumData: IAEA NDS · ENSDF