Periodic Table/Cerium/¹³⁹Ce

← 138Ce140Ce →

¹³⁹Ce

Cerium-139

Radioactive· Half-life: 138 d

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

58

Neutrons (N)

81

Mass Number (A)

139

Atomic Mass

138.906647AMU

Spin / Parity

3/2+

Binding E/A

8.157keV

Natural Abundance

Trace / None

Half-life

138 d

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

EC

100.0%

Decay Chain

¹³⁹CeCerium138 d

EC100.0%

¹³⁹LaLanthanumSTABLE

2-step decay chain → stable · Primary path shown

Other Isotopes of Cerium

119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159

← Back to CeriumData: IAEA NDS · ENSDF