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Which statement explains how the periodic table is arranged?. . A.. The periodic table is arranged by the radioactivity levels in unstable nuclei of elements.. . B.. The periodic table is arranged by the outermost electrons of the elements.. . C.. The periodic table is arranged by increasing atomic mass.. . D.. The periodic table is arranged by number of neutrons found within the most common isotopes.

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Morgansinger123
the periodic table is aranged by increasing atomic mass

taskmasters
The periodic table is arranged by the outermost electrons of the elements and this is the statement among the given statements that explains how the periodic table is arranged. The correct option among all the options that are given in the question is the second option or option "B".

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