Which statement comparing ionic and covalent bonds is correct

1. The difference between electronegativities is greater for atoms in covalent bonds than for atoms in ionic bonds.
2. More electrons are transferred to form covalent bonds than ionic bonds.
3. Elements in Group IA are more likely to form covalent bonds than ionic bonds with other atoms.
4. Covalent bonds tend to be less polar than ionic bonds.

4. Covalent bonds tend to be less polar than ionic bonds.