There are three Lewis structures for the
nitrate polyatomic ion. Draw the three Lewis structures
below. These structures are resonance structures that represent a
single nitrate ion. Do you think each resonance structure
contributes equally to the nitrate ion structure? What molecular
geometry would you assign to the nitrate ion?
There are three Lewis structures that you can draw for
C2H2F2. Each of
these structures is a different compound known as an isomer of the
given molecular formula. Draw each Lewis structure and label
each isomer you have drawn as either polar or non-polar.