Ta-180m ( 0.012% , > 1.2E+5 ) Ta-181 ( 99.988% ) Isotopes: Ta-156 Ta-157 Ta-158 Ta-159 Ta-160 Ta-161 Ta-162 Ta-163 Ta-164 Ta-165 Ta-166 Ta-167 Ta-168 Ta-169 Ta-170 Ta-171 Ta-172 Ta-173 Ta-174 Ta-175 Ta-176 Ta-177 Ta-178 Ta-179 Ta-182 Ta-183 Ta-184 Ta-185 Ta-186 Ta-187 Ta-188 For information on elements, we recommend ![]() |