The periodic table _____. is arranged by atomic mass was developed by early alchemists is arranged by number of protons is divided into vertical periods and horizontal groups

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asked Aug 13, 2021 66.8k views

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The periodic table _____.

is arranged by atomic mass
was developed by early alchemists
is arranged by number of protons
is divided into vertical periods and horizontal groups

Chemistry
middle-school

Ojreadmore asked

by Ojreadmore

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the periodic table is arranged by atomic mass

Mirod answered Aug 18, 2021

by Mirod

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