CREATE TABLE table_1233 ("Element" CLOB, "Nuclide" CLOB, "Z  (  p  ) " FLOAT, "N  (  n  ) " FLOAT, "isotopic mass  (  u  ) " CLOB)

What is the mass of the element with a nuclide that is 169 tm?
SELECT "isotopic mass ( u )" FROM table_1233 WHERE "Nuclide" = '169 Tm'
SELECT "isotopic mass ( u )" FROM "table_1233" WHERE "Nuclide" = '169 Tm'