Electrons
have
a
____________________
electric
charge
and
very
small
____________________
.
Protons
have
the
same
____________________
as
electrons
,
but
positive
,
and
their
mass
is
about
two
____________________
times
grater
.
Neutrons
are
particles
with
no
____________________
charge
.
They
have
a
similar
____________________
to
protons
.
Neutrons
and
protons
are
in
the
____________________
of
the
atom
.
The
electrons
are
moving
in
the
____________________
of
the
atom
.
The
atoms
are
____________________
because
they
have
the
same
number
of
____________________
and
electrons
.
The
number
of
neutrons
is
similar
to
the
number
of
____________________
,
but
not
necessarily
the
same
.
There
are
____________________
different
kinds
of
atmoms
.
