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Chemistry, 01.04.2020 00:00 usagimiller

The order of the elements in the periodic table is based on the .
A. number of protons in an atom of the element
B. number of neutrons in an atom of each element
C. number of electrons in an atom of each element
D. the order in which they were discovered

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The order of the elements in the periodic table is based on the .
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