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The Lanthanides series  has metals that are shiny and are reactive metals.

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Halogens have 6 outer layer electrons and are very reactive.

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Noble gasses have 8 outer layer electrons except for helium which has 2 outer layer electrons these gasses or non reactive

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The oxygen group has 6 outer layer electrons  and are reactive.

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The nitrogen group is the 15th group and has 5 outer layer electrons and the reactivity is different for each of the elements in the group.

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The Carbon group has 4 outer layer electrons and the reactivity is different for each element in the group

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The boron group is reactive and has 3 outer layer electrons.

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Elements in the Actinides series are unstable and are radio reactive.

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Transition metals are metals that either have 1 or 2  outer layer electrons and are less reactive than Aliki Earth-Metals

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Alaki Earth-Metals are less reactive than aliki metals and have two outer layer electrons..

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They are the elements found in the first group on the Periodic Table of Elements  have 1 outer layer electron and are the most metallic,

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It's a row going horizontally on the periodic table of elements.

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A Group or Family is a group of substances sharing some of the same charectoristic