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63 elements discovered- Scientists saw patterns between elements (15 ore 20 min, 9 gen 1869 anni – 5 ore 46 min, 15 gen 1870 anni)

Aggiunto al nastro di tempo:

History of the Periodic Table

BySonya Callendar

26 dic 2017

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Data:

15 ore 20 min, 9 gen 1869 anni

5 ore 46 min, 15 gen 1870 anni

~ 1 years

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