SYMBOL | F | |
ATOMIC NUMBER | 9 | |
ATOMIC WEIGHT | 18.998 | |
GROUP NUMBER | 17 | |
STANDARD STATE | GAS | |
COLOUR | LIGHT YELLOW | |
DISCOVERED | IN 1886 BY HENRI MOLSSAN IN FRANCE | |
ORIGIN OF NAME | FROM THE LATIN FLUERE MEANING TO FLOW | |
USES |
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ATOMIC RADIUS | 0.709 * 10-10M | |
COMPOUNDS |
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EFFECTIVE NUCLEAR CHARGE (Slater) | 5.20 | |
DENSITY | 158.75 KgM-3(SOLID), 1516 KgM-3 (LIQUID AT 85K), 1.696 KgM-3(GAS AT 273K) | |
MELTING POINT | 53.53 K | |
BOILING POINT | 85.01 K | |
ENTHALPY OF FUSION | 5.1 KJMol-1 | |
ENTHALPY OF VAPOURISATION | 6.548 KJMol-1 | |
ISOTOPES | F-17 (Radioactive), F-18 (Radioactive), F-19 AND F-20 (Radioactive) | |
ELECTRON CONFIGURATION | 1S22S22P5 | |
FIRST IONISATION ENERGY | 1681 KJMol-1 | |
ELECTRON AFFINITY | 328 KJMol-1 | |
SOURCES | FLUORITE IS MINED IN CANADA, U.S.A., U.K., RUSSIA, MEXICO AND ITALY. | |
GENERAL INFORMATION | FLUORINE IS A VERY ELECTRONEGATIVE AND REACTIVE ELEMENT, ONE OF THE FEW TO FOR COMPOUNDS WITH THE NOBLE GASES. | |