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All have 1 valence electron
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Alkali Metals
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React readily with water
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Alkali metals
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Reactivity increases down with the group
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Alkali metals
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Form +1 ions
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Alkali metals
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Found only in compounds
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Alkali metals
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2 valence electrons
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Groups 2: Alkaline-Earth metals
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Readily react with air to form oxides
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Groups 2: Alkaline-Earth metals
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Forms +2 ions (because they lose 2 electrons)
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Groups 2: Alkaline-Earth metals
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Found in nature and in compounds
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Groups 2: Alkaline-Earth metals
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All have 7 valence electrons
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The Halogens
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Salt, former
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The Halogens
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Only group to have element in every phase of matter
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The Halogens
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Give an example of a solid halogen
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Iodine/astotine
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Give an example of a gaseous halogen
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Fluorine/chlorine
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Give an example of a liquid halogen
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Bromine
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