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Carbon (Rbceffc)

Definition
An abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds. (Source: wordnet.princeton.edu)
Broader Term
Group IV elements (Rbceff)
Related Terms (Hierarchical)
Lead (Metal) (Rbceffm)
Silicon (Rbceffs)
Tin (Rbcefft)
Related Terms (Associative)