Periodic Table/Promethium/¹⁴¹Pm

← 140Pm142Pm →

¹⁴¹Pm

Promethium-141

Radioactive· Half-life: 20.9 min

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

61

Neutrons (N)

80

Mass Number (A)

141

Atomic Mass

140.913555AMU

Spin / Parity

5/2+

Binding E/A

8.083keV

Natural Abundance

Trace / None

Half-life

20.9 min

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

β⁺

100.0%

Decay Chain

¹⁴¹PmPromethium20.9 min

β⁺100.0%

¹⁴¹NdNeodymium2.49 h

β⁺100.0%

EC¹⁴¹Pr97.3%

e+¹⁴¹Pr2.72%

¹⁴¹PrPraseodymiumSTABLE

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

Other Isotopes of Promethium

126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165

← Back to PromethiumData: IAEA NDS · ENSDF