6.2 Simple and giant structures

Question 1

define giant structure

Answer 1

an element or compound that is made up of atoms or ions joined together by strong bonds

Question 2

define simple structure

Answer 2

an element or compound that is made up of molecules

Question 3

Giant structures are usually very hard. Use their structure to explain why.

Answer 3

The bonds that hold together the atoms or ions in giant structures are very strong. Therefore, giant structures are very hard.

Question 4

When giant structures that contain ions are melted they can conduct electricity. Explain why.

Answer 4

These ions are charged particles. When the substance is melted the ions are free to move from place to place - which is moving charge

Question 5

Why can’t substances with simple structures conduct electricity?

Answer 5

Because they don’t have any charged particles. They don’t have free electrons or ions.