Chemical Element Found in Dusts, Sands, Symbol Si
Puzzle 12 of Periodic Table Medium Pack
Question is: Chemical Element Found in Dusts, Sands, Symbol Si
and the answer is: SILICON
Word Meaning:
SILICON — (chemistry, uncountable) A nonmetallic element (symbol Si) with an atomic number of 14 and atomic weight of 28.0855.
Definitions from Wiktionary.