Chemistry, 23.08.2021 16:40 ten55

How did Mendeleev come up with the first periodic table of the elements? (1 point) A He determined the mass of atoms of each element.
B He estimated the number of electrons in atoms of each element.
C He arranged the elements by different properties to find a pattern.
D He organized the elements by their atomic number.

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How did Mendeleev come up with the first periodic table of the elements? (1 point) A He determined...