____________________
is
composed
by
____________________
particles
called
____________________
which
are
the
____________________
particles
of
any
element
____________________
consist
of
a
____________________
and
dense
____________________
which
is
called
____________________
that
is
made
up
of
:
-
____________________
(
positively
charged
particles
)
-
____________________
(
____________________
charged
particles
)
and
it
is
____________________
by
one
or
more
electrons
(
____________________
negatively
charged
____________________
)
