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Len [333]
3 years ago
6

What was the first property used to organize the periodic table?

Chemistry
1 answer:
Thepotemich [5.8K]3 years ago
6 0

Answer:

Explanation:

atomic mass

In 1869, Mendeleev published the first periodic table of the elements. In his periodic table, Mendeleev arranged elements in rows by increasing atomic mass. Within a row, elements with lower atomic masses were on the left. Mendeleev started a new row every time the chemical properties of the elements repeated.

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