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,) metalloids(along the...
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