____________________
by
nature
have
to
have
____________________
____________________
in
the
outer
shell
.
there
are
____________________
types
of
bonds
,
____________________
and
____________________
.
ionic
bonds
involves
____________________
of
electrons
.
covalent
bonds
do
not
give
/
take
electrons
they
just
____________________
them
forming
a
bond
between
____________________
or
more
atoms
.
