Periodic Table/Lanthanum/¹²⁷La

← 126La128La →

¹²⁷La

Lanthanum-127

Radioactive· Half-life: 5.10 min

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

57

Neutrons (N)

70

Mass Number (A)

127

Atomic Mass

126.916375AMU

Spin / Parity

11/2-

Binding E/A

8.104keV

Natural Abundance

Trace / None

Half-life

5.10 min

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

β⁺

100.0%

Decay Chain

¹²⁷LaLanthanum5.10 min

β⁺100.0%

¹²⁷BaBarium12.7 min

β⁺100.0%

¹²⁷CsCesium6.25 h

β⁺100.0%

¹²⁷XeXenon36.3 d

EC100.0%

¹²⁷IIodineSTABLE

5-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