simplest whole number ratio of atoms of each element in a compound
molecular formula
the true number of atoms of each element in a compound
general formula
all members of a homologous organic series follow the general formula
structural formula
shows the structural arrangement of atoms within a molecule
displayed formula
shows every atom and every bond in an organic compound
skeletal formula
shows only the bonds in a compound and any non-carbon atoms - vertices are carbon atoms and hydrogen is assumed to be bonded to them unless stated otherwise
homologous series
organic molecules are often part of a homologous series so they all follow a general formula
each consecutive member differs by CH2 and there is an increase in boiling points as chain length increases
