Periodic Table/Lanthanum/¹²⁶La

← 125La127La →

¹²⁶La

Lanthanum-126

Radioactive· Half-life: 54.0 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

57

Neutrons (N)

69

Mass Number (A)

126

Atomic Mass

125.919513AMU

Spin / Parity

5-

Binding E/A

8.081keV

Natural Abundance

Trace / None

Half-life

54.0 s

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

β⁺

100.0%

Decay Chain

¹²⁶LaLanthanum54.0 s

β⁺100.0%

¹²⁶BaBarium1.67 h

β⁺100.0%

¹²⁶CsCesium1.64 min

β⁺100.0%

¹²⁶XeXenonSTABLE

4-step decay chain → stable · Primary path shown

Other Isotopes of Lanthanum

116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157

← Back to LanthanumData: IAEA NDS · ENSDF