Periodic Table/Ytterbium/¹⁵⁵Yb

← 154Yb156Yb →

¹⁵⁵Yb

Ytterbium-155

Radioactive· Half-life: 1.79 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

70

Neutrons (N)

85

Mass Number (A)

155

Atomic Mass

154.945783AMU

Spin / Parity

7/2-

Binding E/A

7.813keV

Natural Abundance

Trace / None

Half-life

1.79 s

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

α

89.0%

β⁺

11.0%

Decay Chain

¹⁵⁵YbYtterbium1.79 s

α89.0%

β⁺¹⁵⁵Tm11.0%

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

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

Other Isotopes of Ytterbium

148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185

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