Periodic Table/Iodine/¹²⁶I

← 125I127I →

¹²⁶I

Iodine-126

Radioactive· Half-life: 12.9 d

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

53

Neutrons (N)

73

Mass Number (A)

126

Atomic Mass

125.905624AMU

Spin / Parity

2-

Binding E/A

8.225keV

Natural Abundance

Trace / None

Half-life

12.9 d

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

β⁺

52.7%

β⁻

47.3%

Decay Chain

¹²⁶IIodine12.9 d

β⁺52.7%

β⁻¹²⁶Xe47.3%

¹²⁶TeTelluriumSTABLE

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

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