Periodic Table/Antimony/¹⁴⁰Sb

← 139Sb141Sb →

¹⁴⁰Sb

Antimony-140

Radioactive· Half-life: 170 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

51

Neutrons (N)

89

Mass Number (A)

140

Atomic Mass

139.952345AMU

Spin / Parity

3-

Binding E/A

7.917keV

Natural Abundance

Trace / None

Half-life

170 ms

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

β⁻

100.0%

β⁻n

23.0%

2n

7.6%

Decay Chain

¹⁴⁰SbAntimony170 ms

β⁻100.0%

β⁻n¹³⁹Te23.0%

2n¹³⁸Sb7.60%

¹⁴⁰TeTellurium351 ms

β⁻100.0%

β⁻n¹³⁹I

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

8-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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