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Naturally occurring ytterbium (70 Yb) is composed of seven stable isotopes: [n 1] 168 Yb, 170 Yb– 174 Yb, and 176 Yb, with 174 Yb being the most abundant (31.83% natural abundance). 30 radioisotopes have been characterized, with the most stable being 169 Yb with a half-life of 32.014 days, 175 Yb with a half-life of 4.185 days, and 166 Yb with a half-life of 56.7 hours.
The 169 Yb isotope (with a half-life of 32 days), which is created along with the short-lived 175 Yb isotope (half-life 4.2 days) by neutron activation during the irradiation of ytterbium in nuclear reactors, has been used as a radiation source in portable X-ray machines.
169 Yb synth 32.026 d: ... It contains a table of main isotopes and eventually the standard atomic weight. This template is reused in {{Infobox <element>}} ...
These isotope tables show all of the known isotopes of the chemical elements, ... 169 Tm 170 Yb 171 Lu. 172 Hf 173 Ta 174 W 175 Re 176 Os 177 Ir 178 Pt 179 Au 180 Hg ...
169 Tm 170 Tm 171 Tm 172 Tm 173 Tm 174 Tm 175 Tm 176 Tm 177 Tm 178 Tm 179 Tm 70 Ytterbium: List: 144 Yb 145 Yb 146 Yb 147 Yb 148 Yb 149 Yb 150 Yb 151 Yb 152 Yb 153 Yb 154 Yb 155 Yb 156 Yb 157 Yb 158 Yb 159 Yb
The isotope tables given below show all of the known isotopes of the chemical elements, ... 169 Tm 170 Yb 171 Lu. 172 Hf 173 Ta 174 W 101 161 Nd 162 Pm 163 Sm 164 Eu ...
All isotopes of lutetium are either radioactive or, in the case of 175 Lu, observationally stable, ... 168 Yb: 3+ 169 Lu 71 98 168.9376458(32) 34.06(5) h
169 Yb synth 32.026 d: ... No article "Isotopes of <element>": Header does not link; E119: Main isotopes of ununennium E121: Main isotopes of unbiunium