Answers

2014-08-31T11:09:51+08:00
Johann Dobereiner
Glenn T. Seaborg
Dmitri Mendeleev
John Newlands
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2014-08-31T11:22:10+08:00
The Russian chemist Dmitri Mendeleev was the first scientist to make a periodic table similar to the one used today. Mendeleev arranged the elements by atomic mass, corresponding to relative molar mass.
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