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18 Cards in this Set

  • Front
  • Back

Homologous series

A series of organic compounds having the same functional group but with each successive member differing by CH2.

Functional group

A group of atoms responsible for the characteristic reactions of a compound.

Empirical formula

The simplest whole number ratio of atoms of each element present in a compound.

Molecular formula
The actual number of atoms of each element in a molecule.
General formula
The simplest algebraic formula of a member of a homologous series.
Structural formula
The minimal detail that shows the arrangement of atoms in a molecule.
Displayed formula
The relative positioning of atoms and the bonds between them.
Skeletal formula
The simplified organic formula, shown by removing hydrogen atoms from alkyl chains, leaving just a carbon skeleton and associated functional groups.
Structural isomers
Compounds with the same molecular formula but different structural formulae.
Compounds with the same structural formula, but with a different arrangement in space.
E/Z isomerism
An example of stereoisomerism, in terms of restricted rotation about a double bond and the requirement for 2 different groups to be attached to each carbon atom of the C=C group.

cis-trans isomerism

A special case of E/Z isomerism in which 2 of the substituent groups are the same.

Homolytic fission
Forms 2 radicals.
Hetrolytic fission
Forms a cation and an anion.
Curly arrow
Is the movement of an electron pair, showing either breaking or formation of a covalent bond.
Atom economy
(Molecular mass of the desired product ÷ Sum of molecular masses of all products.) X100.
A species with an unpaired electron.


An electron pair acceptor.