Periodic Table/Samarium/¹⁴³Sm

← 142Sm144Sm →

¹⁴³Sm

Samarium-143

Radioactive· Half-life: 8.75 min

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

62

Neutrons (N)

81

Mass Number (A)

143

Atomic Mass

142.914635AMU

Spin / Parity

3/2+

Binding E/A

8.067keV

Natural Abundance

Trace / None

Half-life

8.75 min

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

β⁺

100.0%

e+

40.0%

EC

60.0%

Decay Chain

¹⁴³SmSamarium8.75 min

β⁺100.0%

EC¹⁴³Pm60.0%

e+¹⁴³Pm40.0%

¹⁴³PmPromethium265 d

EC100.0%

e+¹⁴³Nd5.70%

¹⁴³NdNeodymiumSTABLE

3-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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