
My watch is linked to the ATOMIC clock
in Boulder, Colorado.
The Big Bang Theory Season 1, Episode 10

on ATOMIC spectroscopy
when I came across your ad.
The Big Bang Theory Season 9, Episode 8

It's the ATOMIC number for technetium.
The Big Bang Theory Season 6, Episode 8

And she found ATOMIC spectroscopy boring.
I wouldn't coitus her with your genitals.
The Big Bang Theory Season 9, Episode 8

If you multiply that
by the ATOMIC number of "N"--
The Big Bang Theory Season 7, Episode 3