  We present a drop model for integer and fractional quantum Hall effects
(FQHE). We show that the two-dimensional electron gas breaks up into regions
with filling factors {\nu} = 1 and {\nu} = 0 in disk geometry, and the
formation of drops with a finite number of electrons is possible. Sequences of
filling fractions are constructed on the basis of experimental data. For all
sequences there are initial FQHE states, which correspond to a drop with five
electrons. The remaining FQHE states are composite states of a drop with five
electrons and one or more pairs of electrons.
