This will probably brand me as the uncontested, all-knowing, chemistry nerd overlord of the world, but here are a couple of jokes that I found humorous…enjoy.
Outside his buckyball home, one molecule overheard another molecule saying, “I’m positive that a free electron once stripped me of an electron after he lepton me. You gotta keep your ion them.”

A chemistry professor couldn’t resist interjecting a little philosophy into a class lecture. He interrupted his discussion on balancing chemical equations, saying, “Remember, if you’re not part of the solution, you’re part of the precipitate!”

¬†One day on the Tonight Show, Jay Leno showed a classified add that read: “Do you have mole problems? If so, call Avogadro at 602-1023.”

Q: Why do chemists call helium, curium and barium the medical elements?
A: Because if you can’t helium or curium, you barium!