When are non-polar molecule formed?

Answer 1

When

• Atoms of the same element are bonded together, they show no polarity. Some common examples include oxygen, nitrogen, chlorine as diatomic molecules and ozone as a triatomic molecule.
• The dipole effect of polar bonds in a molecule "cancel" each other out due to the geometry of the molecule, e.g. CF4

Answer 2

A non-polar molecule is formed when the electronegativities of the atoms in the molecule are similar or equal, resulting in a symmetrical distribution of charge around the molecule. This occurs in molecules where the difference in electronegativity between the atoms is very small, leading to a balanced distribution of electrons and no net dipole moment.