O LevelChemistryCambridge (CIE)Exam Questions2. Atoms, Elements & Compounds2.7 Metallic Bonding

Metallic Bonding (Cambridge (CIE) O Level Chemistry): Exam Questions

Exam code: 5070

1 hour10 questions

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2.7 Metallic Bonding

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1
1 mark

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Which statement correctly describes the bonding in metals?

  • A lattice of negative ions in a “sea of electrons”.

  • A lattice of positive ions in a “sea of electrons”.

  • A lattice of neutral atoms with delocalised electrons.

  • A lattice of negative ions with delocalised electrons.

Choose your answer

2
1 mark

Extended Only

Which row provides a correct description of the properties of metals?

 

melting point

boiling point

conducts electricity

A

high

low

cross times

B

low

high

✓

C

low

low

cross times

D

high

high

✓

    Choose your answer

    1
    1 mark

    Metallic bonds are very strong and give metals their properties. Which of the following definitions is correct for a metallic bond?

    • A metallic bond is formed by the electrostatic attraction that occurs due to electron transfer between metal atoms.

    • A metallic bond is formed by the electrostatic attraction between the positive ions and the delocalised electrons.

    • A metallic bond is formed by the electrostatic attraction that occurs due to the uneven sharing of electrons between metal atoms.

    • A metallic bond is formed by the intermolecular forces between the positive metal ions and the delocalised electrons.

    Choose your answer

    2
    1 mark

    Metals are malleable and ductile and can be hammered and pulled into useful shapes.

    Which statement correctly explains these properties?

    • Layers of atoms in the metal lattice are rigid and held strongly together so they cannot move.

    • Layers of atoms in a metal can slide over one another and break the attractive forces that hold them together.

    • Layers of atoms in a metal can slide over one another and new attractive forces are formed between the metal ions and the delocalised electrons.

    • Layers of atoms in a metal cannot slide over one another and the attractive forces between the metal ions and the delocalised electrons are unbreakable.

    Choose your answer