Metallic Bonding

Why are metals good conductors of electricity?

• The electric current can easily travel along the surface of the metal because it is smooth.

• A negative charge can easily push the sea of electrons in one direction, making a current.

• Metals attract electricity.

• Metals are malleable.

Metallic bonding is...

• a type of covalent bond.

• a type of ionic bond.

• an attraction between positive ions and a sea of delocalised electrons.

Electrons that are free to move in metals

• delocalized electrons

• oxidation number

• chemical bond

• salts

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What is the ability of a substance to be pulled into a thin strand?

• Malleability

• Ductility 

• Conductivity

• Solubility

Metals are malleable and ductile, have high melting and boiling points, and are good conductors of heat and electricity.

• True

• False

The lattice structure is responsible for what physical properties of metals?

🔎"The lattice structure makes metals....."

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Which statement best described the structure of a metal?

• 3D lattice of positive metal atoms surrounded by delocalised electrons.

• 3D lattice of positive metal ions surrounded by a sea of delocalised electrons.

• 2D lattice of metal atoms in neat rows.

• 3D lattice of metal ions of alternating charge

Why are metals malleable?

• They are shiny

• The electrons are held tightly within the lattice structure making it strong

• The electrons are delocalised and are able to roll over each other into new positions without breaking the metallic bond.

• The electrons are shared between two metal ions and this holds the atoms together

Why are metals ductile?

• They are shiny

• The electrons are held tightly within the lattice structure making it strong

• The electrons are delocalised and are able to roll over each other into new positions without breaking the metallic bond.

• The electrons are shared between two metal ions and this holds the atoms together

Why do metals conduct?

• They are shiny

• The electrons are held tightly within the lattice

• The electrons are delocalised and able to move towards the positive terminal of a power source when connected in a circuit

• The electrons are shared between two metal ions

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