CREATE TABLE table_1235 ("Element" TEXT, "Nuclide" TEXT, "Z  (  p  ) " FLOAT, "N  (  n  ) " FLOAT, "isotopic mass  (  u  ) " TEXT)

What is the name of the element with isotopic mass of 158.925 34(2)?
SELECT "Element" FROM table_1235 WHERE "isotopic mass ( u )" = '158.925 34(2)'
SELECT "Element" FROM "table_1235" WHERE "isotopic mass ( u )" = '158.925 34(2)'