Below you can find the This semiconducting element makes up 27.7% of the mass of the earth's crust Jeopardy Words Answer. The answer to This semiconducting element makes up 27.7% of the mass of the earth's crust has 7 letters. This clue belongs to the Chemistry category and is part of Jeopardy Word Level 1108. If you scroll near the bottom you will find other clues and answers part of level 1108