Crossword clues for the word: CERIUM The word CERIUM has appeared as an answer to at least 9 crossword clues on different crossword puzzles. Crossword clues for CERIUM Showing 1 to 9 of 9 results Clue(s) Atomic no. 58 Ductile element. Element #58 Element Ce Element named after an asteroid Metal that may ignite if scratched Number 58 on the periodic table Silvery-white metal; symbol Ce Soft metal