Tin is the chemical element with atomic number 50 and chemical symbol Sn. Tin is a silvery-white metal with a highly crystalline structure. When a bar of tin is bent, the crystal structure is disrupted and a "tin cry" can be heard (more of a crackling sound than a real cry). Tin has been used in alloys since the bronze age (bronze is an alloy of tin and copper). For many years it was used in food packaging, hence the name "tin can" (now mostly steel cans).

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