Periodic Table/Terbium/¹³⁷Tb

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¹³⁷Tb

Terbium-137

Radioactive

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

65

Neutrons (N)

72

Mass Number (A)

137

Atomic Mass

136.956020AMU

Spin / Parity

3/2+

Binding E/A

7.757keV

Natural Abundance

Trace / None

Half-life

Unknown

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

p

β⁺

Decay Chain

¹³⁷TbTerbium?

p

β⁺¹³⁷Gd

¹³⁶GdGadolinium?

β⁺

β⁺p¹³⁵Sm

¹³⁶EuEuropium3.30 s

β⁺100.0%

β⁺p¹³⁵Pm0.09%

¹³⁶SmSamarium47.0 s

β⁺100.0%

¹³⁶PmPromethium1.78 min

β⁺100.0%

¹³⁶NdNeodymium50.6 min

β⁺100.0%

¹³⁶PrPraseodymium13.1 min

β⁺100.0%

¹³⁶CeCeriumSTABLE

8-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