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!"
 1457
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Q: Did you hear oxygen went on a date with potassium? A: It went OK.
 1499
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Q: What is the show cesium and iodine love watching together? A: CSI
 720
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Q: What is the chemical formula for "banana"? A: BaNa2
 971
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As an ion chromatography chemist I made this one up: Anions aren't negative, they're just misunderstood.
 1990
1