Periodic Table/Samarium/¹⁵⁸Sm

← 157Sm159Sm →

¹⁵⁸Sm

Samarium-158

Radioactive· Half-life: 5.30 min

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

62

Neutrons (N)

96

Mass Number (A)

158

Atomic Mass

157.929949AMU

Spin / Parity

0+

Binding E/A

7.977keV

Natural Abundance

Trace / None

Half-life

5.30 min

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

β⁻

100.0%

Decay Chain

¹⁵⁸SmSamarium5.30 min

β⁻100.0%

¹⁵⁸EuEuropium45.9 min

β⁻100.0%

¹⁵⁸GdGadoliniumSTABLE

3-step decay chain → stable · Primary path shown

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

← Back to SamariumData: IAEA NDS · ENSDF