Question: What is the mass of the element with a nuclide that is 169 Tm?
SQL: SELECT "isotopic mass ( u )" FROM "1-15366768-1" WHERE "Nuclide" = '169 Tm';

Question: What is the total number of N for the element with nuclide of 141 Pr?
SQL: SELECT COUNT("N ( n )") FROM "1-15366768-1" WHERE "Nuclide" = '141 Pr';

Question: What is the name of the element with isotopic mass of 158.925 34(2)?
SQL: SELECT "Element" FROM "1-15366768-1" WHERE "isotopic mass ( u )" = '158.925 34(2)';