Properties of Metallic Compounds Quiz
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5 questions, one answer each
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1. What are the charged particles in a metal lattice called?
- A. Positive metal ions
- B. Negative metal ions
- C. Neutral atoms only
- D. Molecules
2. Why do metals conduct electricity?
- A. They have a low density
- B. Delocalised electrons are free to move and carry charge
- C. They are shiny
- D. They have covalent bonds
3. Which property explains why metals can be hammered into sheets?
- A. High density
- B. Malleability, because layers of ions can slide over each other
- C. Low melting point
- D. Poor conductivity
4. What type of force holds the metallic lattice together?
- A. Covalent bonds between ions
- B. Weak intermolecular forces
- C. Strong electrostatic forces between positive ions and delocalised electrons
- D. Hydrogen bonds
5. A student bends a copper wire without breaking it, then notes it still conducts electricity afterwards. Which explanation best accounts for both observations?
- A. The metallic bonds fully break and new covalent bonds form
- B. Layers of ions slide over each other while delocalised electrons continuously hold the lattice together
- C. The wire becomes a giant covalent structure when bent
- D. Copper loses its delocalised electrons when bent