Would the following structures be polar or nonpolar? (Not applicable if the structure is an ion. Pick "ionic" in that case).

Question

SO2
N2O
N3−

Answer 1

Is the idea here for you to know the Lewis electron dot structure?
Draw the Lewis structure, then determine the shape of the molecule.
In order for a molecule to be polar the following two criteria must be satisfied.
1. There must be a difference in electronegativity between the central atom and one of the other atoms, AND
2. The molecule must not be symmetrical in three dimensions.

Answer 2

SO2 polar
N2O polar
N3- non polar
?

Answer 3

SO2 polar
N2O polar
N3- non polar
?

Answer 4

Those look ok to me. N2O is linear but polar.

Answer 5

it tells me that it is incorrect..

Answer 6

N3- is an ion.

Answer 7

so
N20 is polar
SO2 is polar
and N3- is ionic
?

Answer 8

I should have read the instructions as bob Pursley did.
Would the following structures be polar or nonpolar? (Not applicable if the structure is an ion. Pick "ionic" in that case).