Periodic Table/Europium/¹³⁷Eu

← 136Eu138Eu →

¹³⁷Eu

Europium-137

Radioactive· Half-life: 8.40 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

63

Neutrons (N)

74

Mass Number (A)

137

Atomic Mass

136.935431AMU

Spin / Parity

5/2+

Binding E/A

7.916keV

Natural Abundance

Trace / None

Half-life

8.40 s

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

β⁺

100.0%

Decay Chain

¹³⁷EuEuropium8.40 s

β⁺100.0%

¹³⁷SmSamarium45.0 s

β⁺100.0%

¹³⁷PmPromethium?

β⁺

¹³⁷NdNeodymium38.5 min

β⁺100.0%

¹³⁷PrPraseodymium1.28 h

β⁺100.0%

¹³⁷CeCerium9.00 h

β⁺100.0%

¹³⁷LaLanthanum60.0 ky

EC100.0%

¹³⁷BaBariumSTABLE

8-step decay chain → stable · Primary path shown

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