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63 elements discovered- Scientists saw patterns between elements (15 St. 20 Min, 9 Jan 1869 Jahr – 5 St. 46 Min, 15 Jan 1870 Jahr)

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History of the Periodic Table

BySonya Callendar

26 Dez 2017

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15 St. 20 Min, 9 Jan 1869 Jahr

5 St. 46 Min, 15 Jan 1870 Jahr

~ 1 years

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