As an ion chromatography chemist I made this one up:
Anions aren't negative, they're just misunderstood.
1901
1
Q: What did the scientist say when he found 2 isotopes of helium?
A: HeHe
963
0
If the Silver Surfer and Iron Man team up, they'd be alloys.
839
0
Q: Why do chemists like nitrates so much?
A: They're cheaper than day rates.
480
0
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!"