<page_title> Isotopes of lithium </page_title> <section_title> List of isotopes </section_title> <table> <cell> 9 Li <col_header> nuclide symbol </col_header> <col_header> excitation energy </col_header> </cell> <cell> 178.3(4) ms <col_header> half-life [resonance width] </col_header> </cell> <cell> 11 Li <col_header> nuclide symbol </col_header> <col_header> excitation energy </col_header> </cell> <cell> 8.75(14) ms <col_header> half-life [resonance width] </col_header> </cell> </table>
Lithium-9 has a half-life of 178.3 milliseconds, and lithium-11 has a half-life of about 8.75 milliseconds.