<page_title> Double beta decay </page_title> <section_title> Known double beta decay isotopes </section_title> <table> <cell> 82 Se <col_header> Nuclide </col_header> </cell> <cell> 128 Te <col_header> Nuclide </col_header> </cell> </table>
Double beta decay isotopes are ⁸² Se and ¹²⁸ Te.