It isn't ionic, the H and N are bonded by strong hydrogen bonds, a type of intermolecular force.
Any compound that has like elements bonded is not polar because the EN difference between them is 0.
Thus, N2, C2, I2, or any other compound is non-polar.
If you think to ammonia molecule, this is polar.
Polar, it has a dipole moment of 1.85 D which is very polar.
Polar
Polar covalent. There is a significant difference in electronegativity between C and F.
Methylamine, or CH3NH2 is a polar molecule. The most electronegative atom in the molecule is nitrogen, which also has a lone pair on it. Also, hydrogen bonding occurs between N-H, which are polar bonds.
Nitrogen is more electronegative.
Nonpolar
Polar, it has a dipole moment of 1.85 D which is very polar.
Polar
polar
F-F bond is nonpolar as both the atoms are same. The rest two are polar covalent bonds.
Since the NH4^+1 ion has 4 H's attached to an N in a tetrahedral shape, it is nonpolar However Ammonia NH3 has 3 H's attached to an N in a pyramidal shape, so it is polar Do a search for Ammonium and ammonia and pick image. You will see the difference.
Polar covalent. There is a significant difference in electronegativity between C and F.
polar covalent
is polar because there are 23 electrons on the N left. O takes 2 and Br takes 1.
It is polar. Carbon has an even lower EN than nitrogen, yet CO2 is apolar, because the two oxygens are arranged symmetrically around the carbon. NO2 on the other hand is angular (because the lone electron pair on the nitrogen), hence, the dipole moments of the two N-O bonds do not cancel out completely and the molecule as a whole is polar.
Polar covalent, electronegativity differece between N and H is is 0.84.
The polarity of molecules is determined by their 'symmetry'. HCN is a linear molecule. H-CN. Since the -CN- ion is more electronegative than the H+ ion, the -CN side of the molecule is more negative. This gives rise to the polarity of the HCN molecule.