B = Properties of different structures

Question 1

What are the 4 different types of structures?

Answer 1

• Simple molecular
• Giant covalent
• Giant metallic
• Giant ionic

Question 2

Which structures don’t conduct electric currents at all?

Answer 2

Simple molecular and giant covalent structures

Question 3

What is different about giant ionic structures when it comes to conducting an electrical current?

Answer 3

They don’t conduct when solid but will conduct if they are either molten or dissolved in water

Question 4

Electric conductivity of metallic structures

Answer 4

Will conduct an electrical current in both solid and molten state

Question 5

Melting points of the 4 structures

Lowest to highest

Answer 5

• giant metallic
• simple molecular
• giant ionic
• giant covalent

Question 6

Which structures are not soluble in water and which is?

Answer 6

INSOLUBLE = simple molecular, giant covalent and giant metallic structures

SOLUBLE = giant ionic structures

Question 7

Example of a simple molecular structure

Answer 7

H2O (water)

Question 8

Example of a giant covalent structure

Answer 8

Carbon (in the form of diamond)

Question 9

Example of a giant metallic structure

Answer 9

Aluminium metal

Question 10

Example of a giant ionic structure

Answer 10

NaCl (sodium chloride)

Question 11

What is a lattice?

Answer 11

It’s a regular arrangement that is repeated when a substance is in the solid state