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The members of the family of the periodic table has similar properties. They are labeled in the top of the column in 2 different ways.

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Alkali metals are the most reactive metals because they can give away the 1 outer -level electron.

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Alkaline -Earth Metals are less reactive than the Alkali Metals their atoms have 2 outer-level electron.

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They are the 2 rows that are in the bottom of the periodic table the can be found in  the earth.

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The element is helium, neon, argon, krypton, and xenon.

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it is the group 15 and it contains 2 nonmetals, 2 metalloids, 2 metals and it's also reactivity is varies among the element.

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They have 5 chemically related elements and they are fluorine, chlorine, bromine, iodine, astatine.

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Lanthanides Series is the number 57 it is included in the rare-earth metals but is not mostly consider in the Series.

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They are the metallic elements that is serve as a bridge in the middle of the of the 2 sited of the table

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It is also known as the Oxygen family it is consist the Oxygen element

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They are the chemical elements in group 13 and they maybe have chemically uncharacterized ununtrium.

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They are a table of chemical elements arranged by order of atomic numbers they are in rows with similar atomic structure.

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When it is in the field of semiconductor physic it is universally called Group IV