Periodic Table/Antimony/¹³⁷Sb

← 136Sb138Sb →

¹³⁷Sb

Antimony-137

Radioactive· Half-life: 497 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

51

Neutrons (N)

86

Mass Number (A)

137

Atomic Mass

136.935523AMU

Spin / Parity

7/2+

Binding E/A

8.028keV

Natural Abundance

Trace / None

Half-life

497 ms

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

β⁻

100.0%

β⁻n

49.0%

2n

Decay Chain

¹³⁷SbAntimony497 ms

β⁻100.0%

β⁻n¹³⁶Te49.0%

2n¹³⁵Sb

¹³⁷TeTellurium2.49 s

β⁻100.0%

β⁻n¹³⁶I2.94%

¹³⁷IIodine24.1 s

β⁻100.0%

β⁻n¹³⁶Xe7.51%

¹³⁷XeXenon3.82 min

β⁻100.0%

¹³⁷CsCesium30.0 y

β⁻100.0%

¹³⁷BaBariumSTABLE

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

Other Isotopes of Antimony

102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142

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