Periodic Table/Europium/¹⁴⁰Eu

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¹⁴⁰Eu

Europium-140

Radioactive· Half-life: 1.51 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

63

Neutrons (N)

77

Mass Number (A)

140

Atomic Mass

139.928088AMU

Spin / Parity

1+

Binding E/A

7.968keV

Natural Abundance

Trace / None

Half-life

1.51 s

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

β⁺

100.0%

e+

95.1%

EC

4.9%

Decay Chain

¹⁴⁰EuEuropium1.51 s

β⁺100.0%

e+¹⁴⁰Sm95.1%

EC¹⁴⁰Sm4.90%

¹⁴⁰SmSamarium14.8 min

β⁺100.0%

¹⁴⁰PmPromethium9.20 s

β⁺100.0%

¹⁴⁰NdNeodymium3.37 d

EC100.0%

¹⁴⁰PrPraseodymium3.39 min

β⁺100.0%

EC¹⁴⁰Ce51.3%

e+¹⁴⁰Ce48.7%

¹⁴⁰CeCeriumSTABLE

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

Other Isotopes of Europium

130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170

← Back to EuropiumData: IAEA NDS · ENSDF