Periodic Table/Samarium/¹⁶⁶Sm

← 165Sm167Sm →

¹⁶⁶Sm

Samarium-166

Radioactive· Half-life: 800 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

62

Neutrons (N)

104

Mass Number (A)

166

Atomic Mass

165.956575AMU

Spin / Parity

0+

Binding E/A

7.832keV

Natural Abundance

Trace / None

Half-life

800 ms

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

β⁻

100.0%

Decay Chain

¹⁶⁶SmSamarium800 ms

β⁻100.0%

¹⁶⁶EuEuropium1.24 s

β⁻100.0%

β⁻n¹⁶⁵Gd

¹⁶⁶GdGadolinium5.10 s

β⁻100.0%

¹⁶⁶TbTerbium27.1 s

β⁻100.0%

¹⁶⁶DyDysprosium3.40 d

β⁻100.0%

¹⁶⁶HoHolmium1.12 d

β⁻100.0%

¹⁶⁶ErErbiumSTABLE

7-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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