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CARBON

CARBON. Radka Bachratá Tereza Halasová. The essentials. Name : carbon Symbol : C Atomic number : 6 Atomic weight : 12.0107 Group number : 14 Period number : 2 Block : p-block. Sources of carbon. Organic Limestone CaCO 3 Dolomite CaCO 3 .MgCO 3 Magnezite MgCO 3 Anorganic Coal

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CARBON

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  1. CARBON Radka Bachratá Tereza Halasová

  2. The essentials • Name: carbon • Symbol: C • Atomic number: 6 • Atomic weight: 12.0107 • Group number: 14 • Period number: 2 • Block: p-block

  3. Sources of carbon Organic Limestone CaCO3 Dolomite CaCO3.MgCO3 Magnezite MgCO3 Anorganic Coal Natural gas Crude oil crude – surový

  4. Modification – graphit • Graphite has a structure containing layers of atoms arranged at the corners of contiguous hexagons. The ease with which layers slide against each other is consistent with the much larger distance between carbon atoms in different layers (335 pm) than between carbon atoms in the same layer (142 pm). contiguous – sousedící ease – snadnost

  5. Modification – diamond • A diamond structure has a face-centered cubic arrangement of atoms plus more atoms (of the same element) in half of the tetrahedral holes. If the atoms in the tetrahedral holes are different, the zinc blende structure results. zinc blende – sfalerit

  6. Modification – fullerens • In the 1980s scientists characterized a new set of allotropes of carbon in which a large number of carbon atoms join to make a structure resembling the stitching on a soccer ball. The molecule C60 is the most easily prepared of these allotropes and has been extensively studied. This structure and that of C70 appear below. resembling – podobný; stitching – šití; soccer – fotbalový

  7. Use • Graphit has wide useage in industry a specialy in production of pencils. • Another important use is in chemical matallurgy. • Natural diamonds are used for manufacturing of the most valuable jewels. • Manmade diamonds are components of cutting tools.

  8. Distribution of organic carbon

  9. Carbon polution

  10. Thank you for your attention

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