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Carbon and Hydrocarbons Key Te
Chapter 20 Key Terms
16
Chemistry
Not Applicable
03/15/2004

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Term
delocalized electrons
Definition
an electron shared by more than two atoms
Term
diamond
Definition
a colorless,crystalline, solid form of carbon
Term
fullerenes
Definition
dark-colored solids made of sherically networked carbon-atom cages
Term
graphite
Definition
a soft, black crystalline form of carbon that is a fair conductor of electricity
Term
organic compounds
Definition
covalently bonded compounds containing carbon, excluding carbonates and oxides
Term
catenation
Definition
the covalent binding of an elements to itself to form chains or rings
Term
hydrocarbons
Definition
composed of only cardon and hydrogen: they are simplest organic compounds
Term
isomers
Definition
compounds that have the same molecular formula but differt structures
Term
structural formula
Definition
indicates the number and types of atoms present in a molecule and also shows the bonding arrangement of the atoms
Term
structural isomers
Definition
isomers in which the atoms are bonded together in different orders
Term
geometric isomers
Definition
isomers in which the order of atom bonding is the same but the arrangement of atoms in space is different
Term
saturated hydrocarbons
Definition
hydrocarbons in which each carbon atom in the molecule forms four single covalent bonds with other atoms
Term
alkanes
Definition
hrdrocarbons that contain only single bonds
Term
homologous series
Definition
one in which adjactent members differ by a constant unit
Term
cycloalkanes
Definition
alkanes in which the carbon atoms are arranged in a ring or cyclic structure
Term
alkyl groups
Definition
groups of atoms that are formed when one hydrogen atom is removed from an alkane molecule
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