Periodic Table/Lanthanum/¹⁴⁸La

← 147La149La →

¹⁴⁸La

Lanthanum-148

Radioactive· Half-life: 1.41 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

57

Neutrons (N)

91

Mass Number (A)

148

Atomic Mass

147.932679AMU

Spin / Parity

2-

Binding E/A

7.997keV

Natural Abundance

Trace / None

Half-life

1.41 s

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

β⁻

100.0%

β⁻n

0.2%

Decay Chain

¹⁴⁸LaLanthanum1.41 s

β⁻100.0%

β⁻n¹⁴⁷Ce0.18%

¹⁴⁸CeCerium56.8 s

β⁻100.0%

¹⁴⁸PrPraseodymium2.29 min

β⁻100.0%

¹⁴⁸NdNeodymiumSTABLE

4-step decay chain → stable · Primary path shown · branching ratios indicated

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

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