<page_title> Plutonium </page_title> <section_title> Decay heat and fission properties </section_title> <table> <cell> 238Pu <col_header> Isotope </col_header> </cell> <cell> 87.74 <col_header> Half-life (years) </col_header> <row_header> 238Pu </row_header> </cell> </table>
The isotope plutonium-238 has a half-life of 87.74 years.