Periodic Table/Indium/¹³¹In

← 130In132In →

¹³¹In

Indium-131

Radioactive· Half-life: 262 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

49

Neutrons (N)

82

Mass Number (A)

131

Atomic Mass

130.926973AMU

Spin / Parity

9/2+

Binding E/A

8.107keV

Natural Abundance

Trace / None

Half-life

262 ms

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

β⁻

100.0%

β⁻n

2.3%

Decay Chain

¹³¹InIndium262 ms

β⁻100.0%

β⁻n¹³⁰Sn2.25%

¹³¹SnTin56.0 s

β⁻100.0%

¹³¹SbAntimony23.0 min

β⁻100.0%

¹³¹TeTellurium25.0 min

β⁻100.0%

¹³¹IIodine8.02 d

β⁻100.0%

¹³¹XeXenonSTABLE

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

Other Isotopes of Indium

96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137

← Back to IndiumData: IAEA NDS · ENSDF