50. Tin: Your Metal Pal Who’s Fun To Be With

We’ve palled around with tin for thousands of years, but you should know that it’s a fair-weather friend.

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48. Cadmium: Don’t You Know That You’re Toxic?

Cadmium will let you choose among a range of orange-ish hues, but it’s some pretty awful news if you contract the “cadmium blues.”

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