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Johann Dobereiner notices atomic weight of strontium was halfway between calcium and barium. (14 ore 22 min, 14 gen 1817 anni – 0 ore 57 min, 20 gen 1818 anni)

Descrizione:

Elements also had similar chemical properties

Aggiunto al nastro di tempo:

History of the Periodic Table

BySonya Callendar
26 dic 2017
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686

Data:

14 ore 22 min, 14 gen 1817 anni
0 ore 57 min, 20 gen 1818 anni
~ 1 years
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