One of the Main Elements in Gas Giant Planets
This page is the CodyCross answer for the clue below from Performing Arts, Group 884, Puzzle 5 (Comedy and Tragedy).
Question is: One of the Main Elements in Gas Giant Planets
and the answer is: HYDROGEN
Word Meaning:
HYDROGEN — (uncountable) The lightest chemical element (symbol H), with an atomic number of 1 and atomic weight of 1.008.
Definitions from Wiktionary.