Periodic Table/Europium/¹⁶¹Eu

← 160Eu162Eu →

¹⁶¹Eu

Europium-161

Radioactive· Half-life: 26.2 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

63

Neutrons (N)

98

Mass Number (A)

161

Atomic Mass

160.933664AMU

Spin / Parity

5/2+

Binding E/A

7.949keV

Natural Abundance

Trace / None

Half-life

26.2 s

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

β⁻

100.0%

Decay Chain

¹⁶¹EuEuropium26.2 s

β⁻100.0%

¹⁶¹GdGadolinium3.65 min

β⁻100.0%

¹⁶¹TbTerbium6.95 d

β⁻100.0%

¹⁶¹DyDysprosiumSTABLE

4-step decay chain → stable · Primary path shown

Other Isotopes of Europium

130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170

← Back to EuropiumData: IAEA NDS · ENSDF