Metallic Solids Full Summary

Question 1

Types Of Particles:

Answer 1

Metal atoms (line between B and Al, drawn like steps downwards and all elements to the right are metals)

Question 2

Forces Of Attraction Between Particles:

Answer 2

• Metallic bonding
• Each metal atom is bonded to all metal atoms around it in a 3D crystal lattice structure
• Free/delocalised valence electrons move throughout the lattice
• There are strong electrostatic attractions between the protons and delocalised electrons

Question 3

Electrical Conductivity:

Answer 3

Can conduct electricity due to the mobility of the delocalised electrons

Question 4

Melting/Boiling Point:

Answer 4

High melting/boiling points due to the very strong metallic bonding that requires a lot of energy to break those bonds

Question 5

Solubility In Water:

Answer 5

Insoluble in water, but some can react with water (eg, Li, Na, Ca, K)

Question 6

Toughness:

Answer 6

• Some are hard metals and some are soft/bendable
• Due to the attractive forces having no direction, the layers of atoms can slide over each other without disrupting the bonds
• Metals are malleable and ductile