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Chemistry Quiz - Bonding - Metallic (Questions)

Metallic bonding explains why metals conduct, bend and stretch. Revise delocalised electrons, ion layers and how structure links to properties like melting point, strength and conductivity.

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Fascinating Fact:

Metals are malleable and ductile because layers of ions can slide over each other. The delocalised electrons keep the bonding in place as the layers move.

In GCSE Chemistry, metallic bonding is modelled as positive metal ions held together by a shared “sea” of delocalised electrons. This helps you explain conduction, why many metals have high melting points, and how alloys can be harder than pure metals.

Key Terms

  • Delocalised electrons: Electrons that are not tied to one atom and can move through the metal structure.
  • Metallic lattice: A regular arrangement of positive metal ions surrounded by mobile electrons.
  • Alloy: A mixture of a metal with other elements, designed to change properties such as strength or hardness.

Frequently Asked Questions (Click to see answers)

What is metallic bonding in GCSE Chemistry?

Metallic bonding is the attraction between positive metal ions and delocalised electrons in a metal. The electrons move through the structure, holding the ions together.

Why do metals conduct electricity as solids?

Metals conduct electricity because delocalised electrons are free to move through the lattice. When a voltage is applied, these electrons carry charge through the metal.

Why are metals malleable and ductile?

Metals are malleable and ductile because the ions can shift position without the bonding breaking. The mobile electrons keep attracting the ions, so the structure stays joined as it changes shape.

Try These Related Quizzes

1. What type of bonding is present in metals?
[ ] Covalent
[ ] Ionic
[ ] Hydrogen
[ ] Metallic
2. The bonding in metals is due to a strong attraction between...
[ ] positive metal ions and a sea of negative electrons
[ ] positive metal atoms and a sea of negative electrons
[ ] negative metal atoms and a sea of positive electrons
[ ] negative metal ions and a sea of negative electrons
3. Why do metals conduct electricity?
[ ] The positive metal ions are free to move
[ ] The negative electrons are free to move
[ ] All the constituent parts can move through the metal
[ ] The positive protons are free to move
4. Metals have...
[ ] low melting points because they have weak bonds
[ ] low melting points because they have strong bonds
[ ] high melting points because they have weak bonds
[ ] high melting points because they have strong bonds
5. Pick the correct statement about the arrangement of particles in a metal.
[ ] The particles are arranged randomly and far apart
[ ] The particles are arranged regularly and far apart
[ ] The particles are arranged regularly and close together
[ ] The particles are arranged randomly and close together
6. Superconductors...
[ ] work at any temperature
[ ] conduct heat better than other materials
[ ] have little or no resistance
[ ] conduct an orchestra really well
7. One drawback of superconductors is...
[ ] their behaviour is erratic
[ ] they only work at VERY low temperatures
[ ] they could enable super fast transmission of electricity
[ ] they could enable loss free power transmission
8. What does malleable mean?
[ ] Can be stretched into wires
[ ] Can be bent or hammered into shape
[ ] Is easily shattered
[ ] Is shiny
9. Metals are malleable because...
[ ] a large amount of energy is required to slide one layer of electrons over another
[ ] little energy is required to slide one layer of electrons over another
[ ] little energy is required to slide one layer of ions over another layer
[ ] a huge amount of energy is required to slide one layer of ions over another layer
10. If a potential difference is applied to a metal...
[ ] the fixed electrons will stay in place and no current will pass through the metal
[ ] the negative ions will move through the metal carrying the electrical current
[ ] the delocalised ions will move through the metal carrying the electrical current
[ ] the delocalised electrons will move through the metal carrying the electrical current

You can find more about this topic by visiting BBC Bitesize - Metals and alloys

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Chemistry Quiz - Bonding - Metallic (Answers)
1. What type of bonding is present in metals?
[ ] Covalent
[ ] Ionic
[ ] Hydrogen
[x] Metallic
The majority of elements have this type of bonding
2. The bonding in metals is due to a strong attraction between...
[x] positive metal ions and a sea of negative electrons
[ ] positive metal atoms and a sea of negative electrons
[ ] negative metal atoms and a sea of positive electrons
[ ] negative metal ions and a sea of negative electrons
Remember that opposites attract
3. Why do metals conduct electricity?
[ ] The positive metal ions are free to move
[x] The negative electrons are free to move
[ ] All the constituent parts can move through the metal
[ ] The positive protons are free to move
The electrons that make up the 'sea' of delocalised electrons are free to move. This allows conduction of both heat and electricity
4. Metals have...
[ ] low melting points because they have weak bonds
[ ] low melting points because they have strong bonds
[ ] high melting points because they have weak bonds
[x] high melting points because they have strong bonds
The strong bonds make it more difficult for the particles to move further apart - requiring more energy - raising the melting point. There are exceptions and the metal mercury is already molten at room temperature
5. Pick the correct statement about the arrangement of particles in a metal.
[ ] The particles are arranged randomly and far apart
[ ] The particles are arranged regularly and far apart
[x] The particles are arranged regularly and close together
[ ] The particles are arranged randomly and close together
Metals usually have higher densities than non-metals because the particles are so closely packed together
6. Superconductors...
[ ] work at any temperature
[ ] conduct heat better than other materials
[x] have little or no resistance
[ ] conduct an orchestra really well
In conductors, electrical energy is lost because of the heating effect caused by resistance. In a superconductor, hardly any electrical energy is lost making electricity transmission much more efficient
7. One drawback of superconductors is...
[ ] their behaviour is erratic
[x] they only work at VERY low temperatures
[ ] they could enable super fast transmission of electricity
[ ] they could enable loss free power transmission
To put metals into a superconducting state, extremely low temperatures close to absolute zero are required. If it becomes possible to make superconductors that work at temperatures above 0oC it would really change the world
8. What does malleable mean?
[ ] Can be stretched into wires
[x] Can be bent or hammered into shape
[ ] Is easily shattered
[ ] Is shiny
Most metals are malleable
9. Metals are malleable because...
[ ] a large amount of energy is required to slide one layer of electrons over another
[ ] little energy is required to slide one layer of electrons over another
[x] little energy is required to slide one layer of ions over another layer
[ ] a huge amount of energy is required to slide one layer of ions over another layer
You can immediately dismiss the first two options because they are talking about layers of electrons. In metallic bonding, it is the metal ions that are in layers, the electrons are randomly arranged
10. If a potential difference is applied to a metal...
[ ] the fixed electrons will stay in place and no current will pass through the metal
[ ] the negative ions will move through the metal carrying the electrical current
[ ] the delocalised ions will move through the metal carrying the electrical current
[x] the delocalised electrons will move through the metal carrying the electrical current
They are attracted to the positive pole. As they leave the metal, fresh electrons are added via the negative pole
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