| Part of the series on
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| The Periodic Table of Elements
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| Types of Elements
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Non-Metals
Alkali Metals
Alkaline Earth Metals
Transition Metals
Rare Earth Metals
Other Metals
Halogens
Inert Elements
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| Natural State at Room Temperature
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Gas
Liquid
Solid
Synthetic
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| Other Groups
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Lanthanoids
Actinoids
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