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Noble gases contain nonmetals, are nonreactive, have 8 electrons except helium which has 2. Noble gases are colorless odorless gases at room temperature. Noble gases can be used for lights like the picture below.

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Halogens are very reactive, contain only nonmetals, have 7 electrons in the outer level, are poor conductors and have violent reactions when combined with alkali metals. Fluorine is the first element in the Halogens group.

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The oxygen group contains three nonmetals, one metalloid, and one metal. They have six electrons on the outer level. All but oxygen solid at room temperature

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The nitrogen group contains two nonmetals, two metalloids, and two metals. Have 5 electrons in the outer level. The reactivity varies among elements and they all solid at room temperature (except nitrogen).

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Carbons first element is carbon like the name. Contains a nonmetal, two metalloids, and three metals. Four electrons on outer level. The carbon group solids at room temperature.

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The boron group's first element is Boron like the name. Contains one metalloid and five metals. Three electrons on outer level. The boron group solids at room temperature.

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The actinide series is a row of elements between the elements 89 and 104. All atoms of the actinide series are unstable or radioactive.

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The lanthanide series is a row of elements in between elements 57 and 72. The lanthanide series is also part of the transition metals and are shiny.

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Group 3-12 in the periodic table. Less reactive than Alkaline-earth metals. They have 1-2 outer electrons because they move around so there is no determined number.

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The second group in the periodic table. Alkaline-earth metals are very reactive but less reactive than Alkali metals because they have two outer electrons. Alkaline-earth metals are also only metals.

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Alkali metals are the first group in the periodic table. They are also the most reactive because they only have one outer electron and only contain metals.

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A period is a horizontal row of elements in the periodic table with a repeating pattern.

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A vertical column of elements in the periodic table that share chemical properties.