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20th century scientists found why properties of elements reoccur periodically (11 h 55 m, 1 jan 1900 ano – 14 h 57 m, 31 dez 1999 ano)

Adicionado na linha do tempo:

History of the Periodic Table

BySonya Callendar

26 dez 2017

0

0

686

Data:

11 h 55 m, 1 jan 1900 ano

14 h 57 m, 31 dez 1999 ano

~ 100 years

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