Periodic Table/Lanthanum/¹⁴⁰La

← 139La141La →

¹⁴⁰La

Lanthanum-140

Radioactive· Half-life: 1.68 d

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

57

Neutrons (N)

83

Mass Number (A)

140

Atomic Mass

139.909487AMU

Spin / Parity

3-

Binding E/A

8.147keV

Natural Abundance

Trace / None

Half-life

1.68 d

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

β⁻

100.0%

Decay Chain

¹⁴⁰LaLanthanum1.68 d

β⁻100.0%

¹⁴⁰CeCeriumSTABLE

2-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