Periodic Table/Lutetium/¹⁵⁵Lu

← 154Lu156Lu →

¹⁵⁵Lu

Lutetium-155

Radioactive· Half-life: 68.0 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

71

Neutrons (N)

84

Mass Number (A)

155

Atomic Mass

154.954326AMU

Spin / Parity

11/2-

Binding E/A

7.753keV

Natural Abundance

Trace / None

Half-life

68.0 ms

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

α

90.0%

β⁺

10.0%

Decay Chain

¹⁵⁵LuLutetium68.0 ms

α90.0%

β⁺¹⁵⁵Yb10.0%

¹⁵¹TmThulium4.17 s

β⁺100.0%

¹⁵¹ErErbium23.5 s

β⁺100.0%

¹⁵¹HoHolmium35.2 s

β⁺88.0%

α¹⁴⁷Tb22.0%

¹⁵¹DyDysprosium17.9 min

β⁺94.4%

α¹⁴⁷Gd5.60%

¹⁵¹TbTerbium17.6 h

β⁺100.0%

α¹⁴⁷Eu0.01%

¹⁵¹GdGadolinium124 d

EC100.0%

α¹⁴⁷Sm1.10%

¹⁵¹EuEuropium4600000000 Gy

α100.0%

¹⁴⁷PmPromethium2.62 y

β⁻100.0%

¹⁴⁷SmSamarium107 Gy

α100.0%

¹⁴³NdNeodymiumSTABLE

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

Other Isotopes of Lutetium

150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188

← Back to LutetiumData: IAEA NDS · ENSDF