As an ion chromatography chemist I made this one up: Anions aren't negative, they're just misunderstood.

Q: Did you hear oxygen went on a date with potassium? A: It went OK.

A biologist, a chemist and a statistician are out hunting. The biologist shoots at a deer and misses 5th to the left. The chemist takes a shot and misses 5th to the right. The statistician yells "We got 'em!"

Q: What do you do with a sick chemist? A: If you can't helium, and you can't curium, then you might as well barium.

Little Johnny's Chemistry teacher wanted to teach his class a lesson about the evils of liquor, so he set up an experiment that involved a glass of water, a glass of whiskey, and two worms. "Now, class. Observe what happens to the two the worms," said the professor putting the first worm in the glass of water. The worm in the water moved about, twisting and seemingly unharmed. He then dropped the second work in the whiskey glass. It writhed in pain for a moment, then quickly sank to the bottom and died. "Now kids, what lesson can we derive from this experiment?" he asked. Little John ... read more