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Alexandre was born in Paris France.
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He went to join the teaching faculty as professor of mine surveying.
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He was named professor of geology at Ecole Nationale superieure de mines de Paris.
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He created a fully functioning and unique system of organizing the chemical elements.He was the first to organize the elements by atomic weights. He plotted a graph of the elements around a cylinder with a circumference equal to 16 units to correspond to the weight of oxygen. The elements that appeared above and below each other shared similar periodic properties between each other.
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Alexandre was awarded the leion d'honer by Napolean 3 of France
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He died.
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