Question

The modern periodic table is based upon​

Answer 1

Answer:

Mendeleev's table

The modern table is based on Mendeleev's table, except the modern table arranges the elements by increasing atomic number instead of atomic mass. Atomic number is the number of protons in an atom, and this number is unique for each element.

Explanation:

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Answer 2

Answer:

Atomic number

Explanation:

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