Periodic Table/Europium/¹⁶⁶Eu

← 165Eu167Eu →

¹⁶⁶Eu

Europium-166

Radioactive· Half-life: 1.24 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

63

Neutrons (N)

103

Mass Number (A)

166

Atomic Mass

165.949813AMU

Spin / Parity

0-

Binding E/A

7.862keV

Natural Abundance

Trace / None

Half-life

1.24 s

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

β⁻

100.0%

β⁻n

Decay Chain

¹⁶⁶EuEuropium1.24 s

β⁻100.0%

β⁻n¹⁶⁵Gd

¹⁶⁶GdGadolinium5.10 s

β⁻100.0%

¹⁶⁶TbTerbium27.1 s

β⁻100.0%

¹⁶⁶DyDysprosium3.40 d

β⁻100.0%

¹⁶⁶HoHolmium1.12 d

β⁻100.0%

¹⁶⁶ErErbiumSTABLE

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

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