Second Main Gas in Saturn
This page is the CodyCross answer for the clue below from Culinary Arts, Group 139, Puzzle 4 (Waffles and Crepes).
Question
Second Main Gas in Saturn
Answer
HELIUM
Word Meaning:
HELIUM — (uncountable) The second-lightest chemical element (symbol He), with an atomic number of 2 and atomic weight of 4.002602, a colorless, odorless and inert noble gas.
Definitions from Wiktionary.