Periodic Table/Xenon/¹²¹Xe

← 120Xe122Xe →

¹²¹Xe

Xenon-121

Radioactive· Half-life: 40.1 min

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

54

Neutrons (N)

67

Mass Number (A)

121

Atomic Mass

120.911453AMU

Spin / Parity

5/2+

Binding E/A

8.176keV

Natural Abundance

Trace / None

Half-life

40.1 min

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

β⁺

100.0%

Decay Chain

¹²¹XeXenon40.1 min

β⁺100.0%

¹²¹IIodine2.12 h

β⁺100.0%

¹²¹TeTellurium19.3 d

β⁺100.0%

¹²¹SbAntimonySTABLE

4-step decay chain → stable · Primary path shown

Other Isotopes of Xenon

108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150

← Back to XenonData: IAEA NDS · ENSDF