<page_title> Isotopes of bismuth </page_title> <section_title> List of isotopes </section_title> <table> <cell> 210Bi <col_header> nuclide symbol </col_header> <col_header> excitation energy </col_header> </cell> <cell> 5.012(5) d <col_header> half-life </col_header> </cell> </table>
Radioisotope ²¹⁰Bi has a half-life of 5.012 days.