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Fluorine is a chemical element; it has symbol F and atomic number 9. It is the lightest halogen [note 1] and exists at standard conditions as pale yellow diatomic gas. Fluorine is extremely reactive as it reacts with all other elements except for the light inert gases. It is highly toxic.
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The template shows a periodic table with small cells. Each cell is wikilinked to the element's article, and the background color is the category as used (commonly) on this wiki. Each cell is wikilinked to the element's article, and the background color is the category as used (commonly) on this wiki.
This is a documentation subpage for Template:Periodic table. It may contain usage information, categories and other content that is not part of the original template page. This periodic table is the prime form presented at this English wikipedia.
This table lists only the occurrences in compounds and complexes, not pure elements in their standard state or allotropes. Noble gas +1 Bold values are main oxidation states
This is a documentation subpage for Template:Periodic table (with pictures). It may contain usage information, categories and other content that is not part of the original template page. Usage
Like the periodic table, the list below organizes the elements by the number of protons in their atoms; it can also be organized by other properties, such as atomic weight, density, and electronegativity. For more detailed information about the origins of element names, see List of chemical element name etymologies.