1) Fcbia
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https://www.crosswordclues.com/clue/halogens
1) Group 17 or viia 2) Some fancy lamps 3) Some headlights
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https://www.crosswordclues.com/clue/halogens
This important group of elements occupies Group VII of the periodic table. Its first element, fluorine, is the most strongly electronegative element known. All halogens are electron defficient and readily share electrons with other elements to staisfy the
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http://www.chemicalglossary.net/definition/885-Halogens
Group VIIA elements: F, Cl, Br, I
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http://www.chemistry-dictionary.com/definition/halogens.php
Group VIIA elements: F, Cl, Br, I
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http://www.encyclo.co.uk/local/20728
A family of nonmetallic, generally electronegative, elements of group viib of the periodic table. They are all multivalent and have oxidation numbers of -1 (the most common), 1, 3, 5, and 7. ... (12 Dec 1998) ...
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This important group of elements occupies Group VII of the periodic table. Its first element, fluorine, is the most strongly electronegative element known. All halogens are electron defficient and readily share electrons with other elements to staisfy their valency needs, eg. they all form compounds with hydrogen, with the formula HX (where X=halogen)
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http://www.encyclo.co.uk/visitor-contributions.php
are the highly reactive elements fluorine, chlorine, bromine, iodine and astatine
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http://www.epaw.co.uk/EPT/glossary.html
In chemistry, the halogens (salt producers), are a group of elements comprising chlorine, bromine, iodine, and fluorine, on account of the fact that their compounds with sodium are common salt (NaCl) and allied compounds. The three first named closely resemble one another in most chemical properties, and there is a gradual falling off in chemical a...
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A family of chemical elements that comprises astatine, fluorine, chlorine, bromine and iodine.
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https://www.encyclo.co.uk/local/20720
the column of elements from fluorine to astatine.
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https://www.encyclo.co.uk/local/22434
No exact match found.
