Chemistry, 28.09.2021 17:20, uniqueray33

Using what you know about the periodic table, list some patterns that organize the elements in terms of atomic number, atomic mass and valence electrons? What do the periods (horizontal rows) and groups (vertical columns) of the periodic table indicate to us about the elements that are categorized within them?

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Using what you know about the periodic table, list some patterns that organize the elements in terms...