JoeWeiss674
10.07.2019 •
History
Dimitri mendeleev created the blank in the 1860s
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Ответ:
periodic table he created it in 1860 while trying to organize the elements
Ответ:
In 1864, with about 50 elements known, the British chemist John Newlands noticed a pattern when he arranged the elements in order of atomic mass, or weight. He found that the properties of the elements seemed to repeat every eighth element.
Ответ:
Yup ofc
Explanation: