Question

1. covalent compounds are also called: molecular compounds
2. covalent bonds form when electrons are (shared / transferred). these bonds usually form between (nonmetal + nonmetals / metal + nonmetal / metal + metal).
3. metallic bonds form between (nonmetal + nonmetals / metal + nonmetal / metal + metal)
4. ionic bonds form when electrons are (shared / transferred). these bonds usually form between (nonmetal + nonmetals / metal + nonmetal / metal + metal).

Explanation:

1. Covalent compounds consist of molecules, so they are called molecular compounds.
2. Covalent bonds form by sharing electrons between non - metals.
3. Metallic bonds occur between metal atoms.
4. Ionic bonds form when electrons are transferred from a metal to a non - metal.

Answer:

1. molecular compounds
2. shared; nonmetal + nonmetals
3. metal + metal
4. transferred; metal + nonmetal