Periodic Table/Samarium/¹⁶⁵Sm

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¹⁶⁵Sm

Samarium-165

Radioactive· Half-life: 980 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

62

Neutrons (N)

103

Mass Number (A)

165

Atomic Mass

164.953290AMU

Spin / Parity

5/2-

Binding E/A

7.849keV

Natural Abundance

Trace / None

Half-life

980 ms

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

β⁻

100.0%

β⁻n

Decay Chain

¹⁶⁵SmSamarium980 ms

β⁻100.0%

β⁻n¹⁶⁴Eu

¹⁶⁵EuEuropium2.53 s

β⁻100.0%

β⁻n¹⁶⁴Gd

¹⁶⁵GdGadolinium11.6 s

β⁻100.0%

¹⁶⁵TbTerbium2.11 min

β⁻100.0%

¹⁶⁵DyDysprosium2.33 h

β⁻100.0%

¹⁶⁵HoHolmiumSTABLE

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

Other Isotopes of Samarium

128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168

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