Periodic Table/Europium/¹⁵⁵Eu

← 154Eu156Eu →

¹⁵⁵Eu

Europium-155

Radioactive· Half-life: 4.74 y

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

63

Neutrons (N)

92

Mass Number (A)

155

Atomic Mass

154.922900AMU

Spin / Parity

5/2+

Binding E/A

8.009keV

Natural Abundance

Trace / None

Half-life

4.74 y

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

β⁻

100.0%

Decay Chain

¹⁵⁵EuEuropium4.74 y

β⁻100.0%

¹⁵⁵GdGadoliniumSTABLE

2-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