
I can't see SUBATOMIC particles,
but nevertheless, they're there.
The Big Bang Theory Season 4, Episode 3

But Penny has no interest
in SUBATOMIC particle research.
The Big Bang Theory Season 3, Episode 15

What exactly are SUBATOMIC particles?
The Big Bang Theory Season 3, Episode 10

...of a SUBATOMIC particle
called the Higgs boson.
The Big Bang Theory Season 6, Episode 3

Well, to paraphrase Mozart,
all the SUBATOMIC particles are there.
The Big Bang Theory Season 2, Episode 6