Question

what does the periodic table says?​

Answer 1

Answer:

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In the periodic table, elements are lined up by atomic number, the number of protons they have. An element's location in the table relates to its reactivity and how its electrons are arranged.

Explanation:

Answer 2

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a table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns.

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