bonding structure and the properties of matter

Question 1

what type of chemical bond forms when a substance is formed from:
two non-metals
two metals
a metal and a non-metal

Answer 1

non-metals - covalent bonding
metals - metallic bonding
metal and non-metal - ionic bonding

Question 2

name the type of compound consisting of a lattice structure of oppositely charged ions

Answer 2

an ionic compound

Question 3

give the type of bonding presented in sodium

Answer 3

metallic bonding

Question 4

give on limitation of representing a ball and stick model

Answer 4

model suggests the particles are far apart they are not

Question 5

why are most covalent substances unable to conduct electricity

Answer 5

they do not contain charged particles that are free to move

Question 6

give one property of metallic substances that is not shared by ionic substances

Answer 6

metals conduct electricity when solid

Question 7

dimond is a very hard substance give one use of a diamond that takes advantage of this property

Answer 7

drill/or saw tips

Question 8

explain why graphene and and fullerene are able to conduct electricity

Answer 8

both contain delocalised eletrons

Question 9

explain why aluminium is unable to conduct electricity

Question 10

what structure of magnesium fluoride makes it suitable for delivering drugs to specific parts of the body

Answer 10

fullerenes have hollow parts at the centre of the molecule that can be used as a cage