Carbon
by Pet Serrano
Title
Carbon
Artist
Pet Serrano
Medium
Painting - Digital Oil
Description
The third in the Element series, Carbon (from Latin: carbo "coal") is the chemical element with symbol C and atomic number 6, containing 6 protons and 6 electrons. As a member of group 14 on the periodic table, it is nonmetallic and tetravalent� making four electrons available to form covalent chemical bonds. Carbon is one of the few elements known since antiquity.
There are several allotropes of carbon of which the best known are graphite, diamond, and amorphous carbon. The physical properties of carbon vary widely with the allotropic form. For example, diamond is highly transparent, while graphite is opaque and black. Diamond is among the hardest materials known, while graphite is soft enough to form a streak on paper (hence its name, from the Greek word "to write"). Diamond has a very low electrical conductivity, while graphite is a very good conductor. Under normal conditions, diamond has the highest thermal conductivity of all known materials.
Carbon is the 15th most abundant element in the Earth's crust, and the fourth most abundant element in the universe by mass after hydrogen, helium, and oxygen. It is present in all known life forms, and in the human body carbon is the second most abundant element by mass (about 18.5%) after oxygen.[14] This abundance, together with the unique diversity of organic compounds and their unusual polymer-forming ability at the temperatures commonly encountered on Earth, make this element the chemical basis of all known life.
(Primary source: Wikipedia)
Uploaded
December 27th, 2011
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