Periodic Table/Iodine/¹⁴⁰I

← 139I141I →

¹⁴⁰I

Iodine-140

Radioactive· Half-life: 588 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

53

Neutrons (N)

87

Mass Number (A)

140

Atomic Mass

139.931716AMU

Spin / Parity

2-

Binding E/A

8.036keV

Natural Abundance

Trace / None

Half-life

588 ms

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

β⁻

100.0%

β⁻n

7.6%

2n

Decay Chain

¹⁴⁰IIodine588 ms

β⁻100.0%

β⁻n¹³⁹Xe7.60%

2n¹³⁸I

¹⁴⁰XeXenon13.6 s

β⁻100.0%

¹⁴⁰CsCesium1.06 min

β⁻100.0%

¹⁴⁰BaBarium12.8 d

β⁻100.0%

¹⁴⁰LaLanthanum1.68 d

β⁻100.0%

¹⁴⁰CeCeriumSTABLE

6-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

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