Metallic Bonding

Question 1

Metallic Bonding

Answer 1

The electrostatic attraction between positive metal ions and delocalised electrons.

Question 2

Properties of Metals

Answer 2

• Shiny
• High Melting Points - due to strong electrostatic
  attractions.
• Good conductors - mobile electrons can carry charge.
• High Density
• Malleable - layers can slide over each other.

Question 3

Structure of a Metal

Answer 3

Organised layers/rows of positive metal ions that have lost electrons to achieve a full outer shell. The abandoned, delocalised electrons move freely through the metal, which is why we say that the ions are in a sea of electrons.
The electrostatic attraction between the negative electrons and the positive metal ions is the metallic bond.

Question 4

Alloy

Answer 4

A combination of two metals - disrupts the regularly arranged layers of a pure metal, and due to the differentiating sizes of the two different metal atoms, the alloy is a harder substance.