Atom of HYDROGEN,
Adam of Maroon 5, mic drop.
The Big Bang Theory Season 9, Episode 23
Didn't you say you're making
HYDROGEN sulfide gas?
The Big Bang Theory Season 4, Episode 4
HYDROGEN was a little more
common or a little less common.
The Big Bang Theory Season 7, Episode 5
Hydrogen.
The Big Bang Theory Season 12, Episode 23
they theoretically can separate
the HYDROGEN from the oxygen,
Breaking Bad Season 2, Episode 12