Carbon family |
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Written by pimpitcha |
Saturday, 19 July 2014 01:51 |
Group 14 elements are Carbon C, silicon Si, germanium Ge, tin Sn, and lead Pb.Carbon is the seventeenth most abundant element by mass in the earth's crust. It is widely distributed in nature in free as well as in the combined state. In elemental state it is available as coal, graphite and diamond; however, in combined state it is present as. metal carbonates, hydrocarbons and carbon dioxide gas (0.03%) in air. One can emphatically say that carbon is the most versatile element in the world. Its combination. with other elements such as dihydrogen, oxygen, chlorine and sulphur provides an. astonishing array of materials ranging from living tissues to drugs and plastics. Organic. chemistry is devoted to carbon containing compounds. ที่มา : http://www.7active.in ลิงค์ : http://youtu.be/Gsp4X-NkmbY อัพโหลดโดย : 7activestudio |