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Friedrich Wöhler, c. 1856
Friedrich Wöhler, c. 1856
A sample of aluminium
A sample of aluminium
A sample of beryllium in elemental form
A sample of beryllium in elemental form
Samples of yttrium in elemental form
Samples of yttrium in elemental form
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Friedrich Wöhler
Friedrich Wöhler
This swimming board is made of polystyrene,it is an example of a polymer.
This swimming board is made of polystyrene,it is an example of a polymer.