Periodic Table/Terbium/¹⁴²Tb

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¹⁴²Tb

Terbium-142

Radioactive· Half-life: 597 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

65

Neutrons (N)

77

Mass Number (A)

142

Atomic Mass

141.939281AMU

Spin / Parity

1+

Binding E/A

7.878keV

Natural Abundance

Trace / None

Half-life

597 ms

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

β⁺

100.0%

e+

96.8%

EC

3.2%

β⁺p

0.0%

Decay Chain

¹⁴²TbTerbium597 ms

β⁺100.0%

e+¹⁴²Gd96.8%

EC¹⁴²Gd3.20%

β⁺p¹⁴¹Eu0.00%

¹⁴²GdGadolinium1.17 min

β⁺100.0%

EC¹⁴²Eu52.0%

e+¹⁴²Eu48.0%

¹⁴²EuEuropium2.36 s

β⁺100.0%

e+¹⁴²Sm89.9%

EC¹⁴²Sm10.1%

¹⁴²SmSamarium1.21 h

β⁺100.0%

e+¹⁴²Pm5.00%

¹⁴²PmPromethium40.5 s

β⁺100.0%

e+¹⁴²Nd77.1%

EC¹⁴²Nd22.9%

¹⁴²NdNeodymiumSTABLE

6-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