Question: What is the half-life discovered in 2003?
SQL: SELECT "Half-life" FROM "2-13764-8" WHERE "Discovery year" = '2003';

Question: What is the decay mode of the 265m Hs isotope discovered in 1984?
SQL: SELECT "Decay mode" FROM "2-13764-8" WHERE "Discovery year" = '1984' AND "Isotope" = '265m Hs';