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Brandon Tom · Answer 1 · 2018-11-14T20:08:51+0000

Answer:

atomic numbers

Step-by-step explanation:

The properties of the elements vary with their atomic number in a systematic fashion.

JasonM · Answer 2 · 2018-11-19T18:31:53+0000

Is the Mendeleev's law. the statement that the chemical and physical properties of the elements recur periodically when the elements are arranged in the order of their atomic weights.

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