The Columbia Encyclopedia, Sixth Edition
fluorine , gaseous chemical element; symbol F; at. no. 9; at. wt. 18.998403; m.p. -219.6°C; b.p. -188.14°C; density 1.696 grams per liter at STP; valence -1. Fluorine is a yellowish, poisonous, highly corrosive gas. It is the most chemically active nonmetallic element and is the most electronegative of all the elements. It is a member of Group 17 (the halogens ) of the periodic table . Fluorine readily displaces the other halogens from their salts. It combines spontaneously with most other elements—exceptions are chlorine, nitrogen, oxygen, and the so-called inert gases...
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Fluorine (revised)
Chemical Elements: From Carbon to Krypton
... with a density of 1.695 grams per liter. That makes fluorine about 1.3 times as dense as air. Fluorine changes from a gas to a liquid at a temperature ... liquid to a solid at -219.61°C (-363.30°F). Fluorine has a strong and characteristic odor that can be ... property is very helpful to those who ...
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Fluorine
Chemistry: Foundations and Applications
Fluorine MELTING POINT: −223°C BOILING POINT: −188°C DENSITY: 1.696 g/cm 3 MOST COMMON IONS: F − Fluorine is a chemical element that in pure form occurs as a dimer of two fluorine atoms, F 2 . The fluorine atom has the ground state electron configuration 1s 2 2s ...
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