Periodic Table/Cesium/¹¹⁷Cs

← 116Cs118Cs →

¹¹⁷Cs

Cesium-117

Radioactive· Half-life: 8.40 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

55

Neutrons (N)

62

Mass Number (A)

117

Atomic Mass

116.928617AMU

Spin / Parity

9/2+

Binding E/A

8.032keV

Natural Abundance

Trace / None

Half-life

8.40 s

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

β⁺

100.0%

Decay Chain

¹¹⁷CsCesium8.40 s

β⁺100.0%

¹¹⁷XeXenon1.02 min

β⁺100.0%

β⁺p¹¹⁶Te0.00%

¹¹⁷IIodine2.22 min

β⁺100.0%

e+¹¹⁷Te77.0%

¹¹⁷TeTellurium1.03 h

β⁺100.0%

EC¹¹⁷Sb75.0%

e+¹¹⁷Sb25.0%

¹¹⁷SbAntimony2.97 h

β⁺100.0%

¹¹⁷SnTinSTABLE

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

Other Isotopes of Cesium

111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152

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