Chemistry Paper 1-Bonding,Structure and Properties of Matter

Question 1

Ionic bonding occurs when a metal bonds with what? (1)

Answer 1

A non-metal

Question 2

During ionic bonding what happens to the metal atom? (2)

Answer 2

It looses electrons
Forms a positive ion

Question 3

During ionic bonding what happens to the non-metal atom? (2)

Answer 3

It gains electrons
Forms a negative ion

Question 4

What happens during ionic bonding? (1)

Answer 4

Electrons are transferred

Question 5

What ion charge do group 1 elements form? (1)

Answer 5

1+

Question 6

What ion charge do group 2 elements form? (1)

Answer 6

2+

Question 7

What ion charge do group 6 elements form? (1)

Answer 7

2-

Question 8

What ion charge do group 7 elements form? (1)

Answer 8

1-

Question 9

What type of forces hold ionic compounds together? (2)

Answer 9

Electrostatic attraction between oppositely charged ions

Question 10

What structure if formed during ionic bonding? (1)

Answer 10

Giant ionic lattice

Question 11

List 3 properties of ionic compounds (3)

Answer 11

High melting point
High boiling point
Conduct electricity when molten
or in solution

Question 12

What is a covalent Bond? (1)

Answer 12

Where two non-metals share outer shell electrons

Question 13

Metals consist of _____ _____ of atoms arranged in a _______ pattern (2)

Answer 13

Giant Structures
Regular

Question 14

How are the ions in metals held together? (1)

Answer 14

Sea of delocalised electrons

Question 15

Are metallic bonds strong or weak? (1)

Answer 15

Strong

Question 16

What are the 3 types of bonding? (3)

Answer 16

Ionic
Covalent
Metallic

Question 17

What is a polymer? (1)

Answer 17

A repeating chain of monomers

Question 18

List 3 examples of covalently bonded substances? (3)

Answer 18

Graphite
Diamond
Silicone Dioxide

Question 19

What arrangement is formed by metals? (1)

Answer 19

Layer upon layer in a regular pattern

Question 20

List 3 properties of small covalent molecules (3)

Answer 20

Low melting point
Low boiling point
Cannot conduct electricity

Question 21

Why are polymers solids at room temperature? (2)

Answer 21

High melting and boiling point
due to strong intermolecular forces

Question 22

List 3 properties of giant covalent structures (3)

Answer 22

High boiling point
High melting point
Usually solids at room temperature

Question 23

What is an alloy? (1)

Answer 23

A mixture of a metal with at least 1 other substance to achieve better properties

Question 24

Why are alloys harder that pure metals? (2)

Answer 24

Layers become distorted
meaning cannot slide easily

Question 25

Why can metals conduct electricity? (2)

Answer 25

Sea of delocalised electrons to carry the electrical charge through the structure

Question 26

Why are metals good conductors of thermal energy? (2)

Answer 26

Sea of delocalised electrons to carry the thermal energy through the structure

Question 27

What is graphene? (1)

Answer 27

A single, isolated layer of graphite

Question 28

Where is graphene used? (2)

Answer 28

Electronic or composites

Question 29

What is a fullerene? (1)

Answer 29

Molecules of carbon with a hollow shape

Question 30

What is a carbon nanotube and where can they be used? (3)

Answer 30

A cylindrical fullerene Electronics Nanotechnology

Question 31

How many covalent bonds does diamond form? (1)

Answer 31

4 strong covalent bonds

Question 32

List 3 properties of diamond (3)

Answer 32

Very Hard High melting point Does not conduct electricity

Question 33

What type of structure does diamond form? (1)

Answer 33

Tetrahedral Structure

Question 34

What element makes up both diamond and graphite? (1)

Answer 34

Carbon

Question 35

How many bonds does graphite form? (1)

Answer 35

3 Strong covalent bonds

Question 36

Are there bonds between the layers of graphite? (1)

Answer 36

No, there are weak intermolecular forces

Question 37

Why can graphite conduct electricity? (1)

Answer 37

Only forms 3 strong covalent bonds meaning there is a delocalised electron to carry the charge through the structure

Question 38

How small is a nanoparticle? (1)

Answer 38

1-100 nanometer

Question 39

What is 1nm equal to? (1)

Answer 39

1x10(-9)

Question 40

Which is smaller a nanoparticle or a fine particle? (1)

Answer 40

A Nanoparticle

Question 41

Nanoparticle show ____ properties to the same materials because ______ (2)

Answer 41

Different They have a high surface area to volume ratio

Question 42

Name 3 uses of nanoparticles (3)

Answer 42

Medicine Electronics Sun Creams

Question 43

Why do some people believe nanoparticles are toxic? (1)

Answer 43

May be able to enter the brain through the blood stream and cause harm