Question

chemistry semester 1 exam on lever possible points: 1.14 which type of chemical bond has the properties of having a very high melting point, an \electron sea\ structure, and being malleable, ductile, and lustrous? molecular bonds ionic bonds covalent bonds metallic bonds

Explanation:

To determine the correct chemical bond, we analyze each option:

• Molecular bonds (intermolecular forces) typically have low melting points and don't have an "electron sea" structure.
• Ionic bonds form crystals with high melting points but have a lattice of ions, not an electron sea, and are brittle (not malleable/ductile).
• Covalent bonds (in molecules or networks) have varied melting points; network covalent (e.g., diamond) is hard but not malleable/ductile, and molecular covalent has low melting points.
• Metallic bonds involve metal atoms with delocalized electrons (electron sea), resulting in high melting points (for many metals), malleability, ductility, and luster. These properties match the description.

Answer:

D. metallic bonds (assuming the last option is labeled D; if the options are as listed with the last being "metallic bonds", the answer is the option with "metallic bonds")