Final answer:
Covalent bonds form between nonmetals with similar electronegativity and result in compounds with distinct physical properties from ionic compounds, including lower melting points and poorer electrical conductivity.
Step-by-step explanation:
The statements about covalent bonding that are generally true include: Covalent bonds are formed between two atoms when both have similar tendencies to attract electrons to themselves, and nonmetal atoms frequently form covalent bonds with other nonmetal atoms.
Compounds that contain covalent bonds have physical properties distinct from ionic compounds; they tend to have lower melting and boiling points, are poor conductors of electricity, and are often liquids or gases at room temperature. Additionally, covalent bonds tend to form not between metals and nonmetals, but rather between two nonmetals.