<page_title> Meitnerium </page_title> <section_title> Stability and half-lives </section_title> <table> <cell> 274Mt <col_header> Isotope </col_header> </cell> <cell> 0.44 s <col_header> Half-life </col_header> </cell> <cell> 276Mt <col_header> Isotope </col_header> </cell> <cell> 0.72 s <col_header> Half-life </col_header> </cell> </table>
The Meitnerium isotopes ²⁷⁶Mt and ²⁷⁴Mt have half-lives of 0.72 and 0.44 seconds respectively.