Periodic Table/Promethium/¹⁴⁴Pm

← 143Pm145Pm →

¹⁴⁴Pm

Promethium-144

Radioactive· Half-life: 363 d

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

61

Neutrons (N)

83

Mass Number (A)

144

Atomic Mass

143.912596AMU

Spin / Parity

5-

Binding E/A

8.089keV

Natural Abundance

Trace / None

Half-life

363 d

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

EC

100.0%

e+

8.0%

Decay Chain

¹⁴⁴PmPromethium363 d

EC100.0%

e+¹⁴⁴Nd8.00%

¹⁴⁴NdNeodymium2290000 Gy

α100.0%

¹⁴⁰CeCeriumSTABLE

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