Structure and bond type

[504939134]

By just looking at a Lewis structure how can we distinguish the type of bond and dipole moment present?

[Karyn How 1J]

You would look at the elements that are involved in the Lewis structure since their electronegativities and other traits, especially the tendency of elements to form ions will imply that the bond is ionic. The dipole moment depends mostly on the electronegativity strength because you'll know which element the electrons are more attracted to.

[Rhea Shah 2F]

If two atoms have a bond in which they share electrons, then you know that they are covalently bonded. If electrons are merely being donated from one atom to another, they share an ionic bond. The dipole moment is typically represented by an arrow pointing to the more electronegative atom, demonstrating the pull on the electrons toward the more electronegative atom.