![]() ![]() The International Union of Pure and Applied Chemistry designated the isotope C-12 as the basis for atomic weights, while the unstable isotope C-14, with a half-life of 5700 years, is used for carbon dating. Carbon-based compounds are the basis for all living systems and comprise the structure of fossil fuels in the form of hydrocarbons. all New products Cove Base Board 6圆 Red - Product Overview Get the modern. ![]() Carbon’s small size allows it to form multiple bonds with many other small atoms, including carbon atoms, and is prevalent in a large number of chemical compounds. Clear All Only 5 Left Sponsored Statuario Plus Marble Look Rectified Porcelain. Four allotropes of carbon are known: amorphous (e.g., charcoal and soot), graphite, diamond, and fullerenes. Obtained from: burning with insufficient oxygenĬarbon has been known since ancient times when it was produced by burning organic material in the presence of insufficient oxygen. ![]()
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