Periodic Table/Lanthanum/¹²⁸La

← 127La129La →

¹²⁸La

Lanthanum-128

Radioactive· Half-life: 5.18 min

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

57

Neutrons (N)

71

Mass Number (A)

128

Atomic Mass

127.915592AMU

Spin / Parity

5+

Binding E/A

8.110keV

Natural Abundance

Trace / None

Half-life

5.18 min

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

β⁺

100.0%

Decay Chain

¹²⁸LaLanthanum5.18 min

β⁺100.0%

¹²⁸BaBarium2.43 d

EC100.0%

¹²⁸CsCesium3.64 min

β⁺100.0%

¹²⁸XeXenonSTABLE

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