Periodic Table/Cadmium/¹²⁹Cd

← 128Cd130Cd →

¹²⁹Cd

Cadmium-129

Radioactive· Half-life: 147 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

48

Neutrons (N)

81

Mass Number (A)

129

Atomic Mass

128.932236AMU

Spin / Parity

3/2+

Binding E/A

8.079keV

Natural Abundance

Trace / None

Half-life

147 ms

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

β⁻

100.0%

β⁻n

Decay Chain

¹²⁹CdCadmium147 ms

β⁻100.0%

β⁻n¹²⁸In

¹²⁹InIndium570 ms

β⁻100.0%

β⁻n¹²⁸Sn0.23%

¹²⁹SnTin2.23 min

β⁻100.0%

¹²⁹SbAntimony4.37 h

β⁻100.0%

¹²⁹TeTellurium1.16 h

β⁻100.0%

¹²⁹IIodine16.1 My

β⁻100.0%

¹²⁹XeXenonSTABLE

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

Other Isotopes of Cadmium

94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135

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