Periodic Table/Iodine/¹²⁹I

← 128I130I →

¹²⁹I

Iodine-129

Radioactive· Half-life: 16.1 My

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

53

Neutrons (N)

76

Mass Number (A)

129

Atomic Mass

128.904984AMU

Spin / Parity

7/2+

Binding E/A

8.226keV

Natural Abundance

Trace / None

Half-life

16.1 My

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

β⁻

100.0%

Decay Chain

¹²⁹IIodine16.1 My

β⁻100.0%

¹²⁹XeXenonSTABLE

2-step decay chain → stable · Primary path shown

Other Isotopes of Iodine

106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147

← Back to IodineData: IAEA NDS · ENSDF