States of matter - The Solid State

Question 1

What are the main types of lattice structures?

Answer 1

Giant ionic structure, giant metallic structure, giant molecular structure, simple molecular structure, hydrogen bonded solid

Question 2

Properties of giant ionic structure

Answer 2

• high mp and bp
• Does not conduct electricity when solid. Only conduct in molten or aqueous state
• most ionic compounds are soluble

Question 3

Properties of giant metallic structure

Answer 3

• high mp and bp

- Good conductors of electricity

Question 4

What are the examples of giant molecular structure?

Answer 4

Graphite, diamond and sand (SiO2)

Question 5

Properties of graphite

Answer 5

• high mp and bp
• soft, slippery and has lubricating properties
• good conductors of electricity

Question 6

Properties of diamond

Answer 6

• high mp and bp
• does not conduct electricity
• very hard and strong

Question 7

properties of sand (SiO2)

Answer 7

• High melting point

- Does not conduct electricity

Question 8

Properties of simple molecular structure

Answer 8

• Low mp and bp
• usually soft because weak intermolecular forces
• does not conduct electricity

Question 9

properties of hydrogen-bonded solids

Answer 9

high bp of water due to the presence of hydrogen bonding

-ice is less dense than water

Question 10

Define allotropes.

Answer 10

Different forms of the same element with different arrangement of atoms (different structure).