Ionic because it is a bond between a metal (vanadium) and a nonmetal (oxygen). They do not share electrons.
covalent bond
Ionic
Ionic
Ionic
Ionic
Chlorine oxide would be a covalent compound, and not an ionic compound.
Lithium oxide is an ionic lattice.
Ionic
Ionic
Dihydrogen oxide, water, is a polar covalent compound.
Ionic.
Ionic. This is the best decription of FeO, iron(II) oxide.