U1S3 metallic bonding

Question 1

What is the structure of a metal

Answer 1

• giant metallic lattice structure
• outermost shell of electrons of a metal atom is delocalised
• positive metal ions are attracted to delocalised negative electrons

Question 2

Melting point of metals

Answer 2

• high
• strong electrostatic forces of attraction between positive metal ion and delocalised sea of electrons

Question 3

Metal ability to be shaped

Answer 3

• no bonds holding specific ions together
• metal ions able to slide over each other
• malleable

Question 4

Conductivity of metals

Answer 4

• conducts
• delocalised electrons can pass kinetic energy to each other (thermal)
• delocalised electrons can move through structure and carry charge (electrical)