Social Studies, 09.12.2020 06:10 lolomgwtfnvm4

The Periodic Table is arranged by properties: metals (mostly to the
of table),
metalloids (along the
and nonmetals
(mostly to the
of table). It is also arranged by
chemical properties, including reactivity. Elements in the
same vertical group have the same number of
electrons, and elements in the same horizontal period have
the same number of
shells.

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The Periodic Table is arranged by properties: metals (mostly to the
of table),
metalloi...