Periodic Table/Tellurium/¹²¹Te

← 120Te122Te →

¹²¹Te

Tellurium-121

Radioactive· Half-life: 19.3 d

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

52

Neutrons (N)

69

Mass Number (A)

121

Atomic Mass

120.904945AMU

Spin / Parity

1/2+

Binding E/A

8.247keV

Natural Abundance

Trace / None

Half-life

19.3 d

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

β⁺

100.0%

Decay Chain

¹²¹TeTellurium19.3 d

β⁺100.0%

¹²¹SbAntimonySTABLE

2-step decay chain → stable · Primary path shown

Other Isotopes of Tellurium

104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145

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