Match each structural feature of the electron sea model on the left with the macroscopic metal property it directly accounts for on the right.
- Movement of delocalized electrons toward a positive terminal under an applied voltageHigh electrical conductivity
- Layers of positive metal cations sliding past one another while maintaining electrostatic attraction with mobile electronsMalleability and ductility
- Absorption and immediate re-emission of incident light by free surface electronsLustrous (shiny) appearance
- Strong electrostatic attraction extending uniformly throughout the 3D lattice between metal cations and delocalized electronsHigh melting and boiling points
Answer
1. Movement of delocalized electrons toward a positive terminal matches High electrical conductivity. 2. Layers of cations sliding past each other matches Malleability and ductility. 3. Absorption and re-emission of light by free electrons matches Lustrous (shiny) appearance. 4. Strong non-directional electrostatic attraction matches High melting and boiling points.
Each structural feature in the electron sea model directly dictates a specific macroscopic behavior: delocalized electron motion provides electrical conductivity, cation layer flexibility allows deformation (malleability/ductility), light oscillation by surface electrons causes shiny luster, and extensive electrostatic forces produce high thermal melting thresholds.
Step-by-Step Solution
Key Concept
Electron Sea Model of Metallic Bonding