12th November 2019


Who were the scientists that were involved in the development of the periodic table?

Dmitri Mendeleev

Similarly one may ask, who are the scientist involved in periodic table?

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.

Who rearranged the periodic table?

The periodic table was arranged by atomic mass, and this nearly always gives the same order as the atomic number. However, there were some exceptions (like iodine and tellurium, see above), which didn't work. Mendeleev had seen that they needed to be swapped around, but it was Moseley that finally determined why.
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