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An up-to-date periodic table with detailed but easy to understand information ... The halogens are five non-metallic elements found in group 17 of the periodic table. The term "halogen" means "salt-former" and compounds containing halogens are called "salts".
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www.chemicalelements.com/groups/halogens.html
www.chemicalelements.com/groups/halogens.html
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The halogens are the five chemical elements that make up Group 17 on the periodic table: fluorine, chlorine, bromine, iodine, and astatine. The term halogen comes from Greek terms meaning "to produce sea salt." The halogens are all chemically active. ... Fluorine was one of the last common elements to be isolated.
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www.scienceclarified.com/Ga-He/Halogens.html
www.scienceclarified.com/Ga-He/Halogens.html
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The elements of Group 17, the Halogens, are a very similar set of non-metals. They all exist as diatomic molecules, X2, and oxidise metals to form halides. The halogen oxides are acidic, and the hydrides are covalent.
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www.rsc.org/chemsoc/visualelements/PAGES/data/intro_gro...
www.rsc.org/chemsoc/visualelements/PAGES/data/intro_groupvii_data.html
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Halogens Uses; Above were some unique halogen(s) characteristics. Further we will see some halogen(s) uses according to the halogen elements; fluorine, chlorine, bromine, astatine and iodine. ... Other fluorine uses are as: it is used in rocket fuels as it is combustible. The most common of fluoride is in toothpaste.
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www.buzzle.com/articles/halogens-uses-of-halogens.html
www.buzzle.com/articles/halogens-uses-of-halogens.html
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'Halogens' means 'salt formers' and the most common compound is sodium chloride which is found from natural evaporation as huge deposits of 'rock salt' or the even more abundant 'sea salt' in the seas and oceans. ... So typical halogen compound names are, ... they are all TOXIC elements (for more detail see uses of Halogens).
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www.docbrown.info/page03/The_Halogens.htm
www.docbrown.info/page03/The_Halogens.htm
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As the halogen atoms get bigger, any bonding pair gets further and further away from the halogen nucleus, and so is less strongly attracted towards it. In other words, as you go down the Group, the elements become less electronegative.
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www.chemguide.co.uk/inorganic/group7/properties.html
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protect teeth against decay ... drinking water and toothpaste ... heat-resistant plastic...
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www.sciencebyjones.com/halogens.htm
www.sciencebyjones.com/halogens.htm
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They combine directly with most metals to form salts, such as common salt (NaCl). Each halogen has seven electrons in its valence shell, which accounts for the chemical similarities displayed by the group. ... (redirected from Halogen elements)
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encyclopedia.farlex.com/Halogen+elements
encyclopedia.farlex.com/Halogen+elements
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Protactinium is one of the rarest and most expensive naturally occurring elements. The element is an α-emitter and is a radiological hazard similar to polonium. Protactinium is a highly toxic and radioactive rare earth metal that requires special handling.
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www.webelements.com/protactinium/
www.webelements.com/protactinium/
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