// todo need optimize like in event.jsp. Add indexing or not indexing this page. Johann Dobereiner notices atomic weight of strontium was halfway between calcium and barium. (14 h 22 min, 14 janv. 1817 ans – 0 h 57 min, 20 janv. 1818 ans) (La bande de temps)
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Johann Dobereiner notices atomic weight of strontium was halfway between calcium and barium. (14 h 22 min, 14 janv. 1817 ans – 0 h 57 min, 20 janv. 1818 ans)

Description:

Elements also had similar chemical properties

Ajouté au bande de temps:

History of the Periodic Table

BySonya Callendar
26 déc. 2017

Date:

14 h 22 min, 14 janv. 1817 ans
0 h 57 min, 20 janv. 1818 ans
~ 1 years
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