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the periodic table was created
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plato coins became elements
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Arcenic was discovered
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Zinc was found in india
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Phosphorus was discovered
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Antonomy was discovered
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cobalt was branded
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platnium was discovered
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Geoffery discoverd
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discovered in canverdish
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chemistry was invented
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first elemets were discvered
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was translated into english
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daltons law was made
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elements were grouped
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elements were represented by letters
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only 28 elements have been discovered
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periodic table reaaranged
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periodic table was published
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by 1869, 63 elements were discovered
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radioactive elements were disocvered
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henry mosely determined the atomic number for each element
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all elements have been discovered
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Lanthanids and actinides were found
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contrasted in 1951