Chapter 1

Question 0

A solid ?

Answer 0

A. Has definite mass but takes the volume & shape of it’s container

B. Has definite mass & volume but takes the shape of it’s container

C. Has definite mass, volume & shape

Answer = C

Question 1

The three states of matter are ?

Answer 1

A. Solid, liquid & gas
B. Elements, compounds & mixtures
C. Protons, neutrons & electrons

Answer = A

Question 2

A liquid ?

Answer 2

A. Has definite mass but takes the volume & shape of it’s container

B. Has definite mass & volume but takes the shape of it’s container

C. Has definite mass, volume & shape

Answer = B

Question 3

A gas ?

Answer 3

A. Has definite mass but takes the volume & shape of it’s container

B. Has definite mass & volume but takes the shape of it’s container

C. Has definite mass, volume & shape

Answer = A

Question 4

The chemical classification of matter is ?

Answer 4

A. Solid, liquid & gas
B. Elements, compounds & mixtures
C. Protons, neutrons & electrons

Answer = B

Question 5

An element ?

Answer 5

A. Consists of elements or compounds which are brought together by a physical process

B. Is a substance which cannot by any known chemical process be about into two or chemically simpler substances

C. Is a substance which contained two or more elements chemically joined together

Answer = B

Question 6

A compound ?

Answer 6

A. Consists of elements or compounds which are brought together by a physical process

B. Is a substance which cannot by any known chemical process be about into two or chemically simpler substances

C. Is a substance which contained two or more elements chemically joined together

Answer = C

Question 7

A mixture ?

Answer 7

A. Consists of elements or compounds which are brought together by a physical process

B. Is a substance which cannot by any known chemical process be about into two or chemically simpler substances

C. Is a substance which contained two or more elements chemically joined together

Answer = A

Question 8

An example of elements would be ?

Answer 8

A. Salt & sand, earth & sawdust, carbon & iron fillings

B. Water, salt & sulphuric acid

C. Hydrogen, oxygen, copper, iron, aluminium & carbon

Answer = C

Question 9

An example of compounds would be ?

Answer 9

A. Salt & sand, earth & sawdust, carbon & iron fillings

B. Water, salt & sulphuric acid

C. Hydrogen, oxygen, copper, iron, aluminium & carbon

Answer = B

Question 10

An example of mixtures would be ?

Answer 10

A. Salt & sand, earth & sawdust, carbon & iron fillings

B. Water, salt & sulphuric acid

C. Hydrogen, oxygen, copper, iron, aluminium & carbon

Answer = A

Question 11

The term ‘molecular structure’ is used when what is being discussed ?

Answer 11

A. Elements
B. Compounds
C. Mixtures

Answer = B

Question 12

The term ‘atomic structure’ is used when talking about ?

Answer 12

A. Elements
B. Compounds
C. Mixtures

Answer = A

Question 13

A nucleus will have a ?

Answer 13

A. Positive charge
B. Neutral charge
C. Negative charge

Answer = A

Question 14

An electron will have a ?

Answer 14

A. Positive charge
B. Neutral charge
C. Negative charge

Answer = C

Question 15

With the nucleus being positively charged and the electron equally negative; the atom will be ?

Answer 15

A. Electrically positive
B. Electrically neutral
C. Electrically negative

Answer = B

Question 16

The particles in a nucleus carrying a positive charge are called ?

Answer 16

A. Electrons
B. Protons
C. Neutrons

Answer = B

Question 17

The nucleus usually contains electrically neutral particles called ?

Answer 17

A. Protons
B. Neutrons
C. Electrons

Answer = B

Question 18

Neutrons when compared to protons ?

Answer 18

A. Are heavier in mass
B. Are lighter in mass
C. Are equal in mass

Answer = C

Question 19

Electrons are ?

Answer 19

A. Heavier than protons
B. Lighter than protons
C. Same weight as neutrons

Answer = B

(1/1836 of the mass of a proton)

Question 20

There are how many different types of natural atoms ?

Answer 20

A. 76
B. 81
C. 96

Answer = C

Question 21

Atoms are chemically indistinguishable and are called ?

Answer 21

A. Isotopes
B. Molecules
C. Ions

Answer = A

Question 22

The weight of an atom is due to the ?

Answer 22

A. Protons & neutrons
B. Protons & electrons
C. Protons, electrons & neutrons

Answer = A

Question 23

Atomic weight will be virtually equal to the sum of the ?

Answer 23

A. Protons & neutrons
B. Protons & electrons
C. Protons, electrons & neutrons

Answer = A

Question 24

The orbit of what defines the size/volume occupied by an atom ?

Answer 24

A. Proton B. Neutron C. Electron Answer = C

Question 25

It is possible for an atom to gain or lose ?

Answer 25

A. Protons B. Neutrons C. Electrons Answer = C

Question 26

If an atom has lost an electron it would be called a ?

Answer 26

A. Positive ion B. Neutral ion C. Negative ion Answer = A

Question 27

If an atom has gained an electron it would be called a ?

Answer 27

A. Positive ion B. Neutral ion C. Negative ion Answer = C

Question 28

Materials which allow an electric current to flow easily are called ?

Answer 28

A. Conductors B. Insulators C. Semiconductors Answer = A

Question 29

Materials which prevent the flow of an electric current to flow easily are called ?

Answer 29

A. Conductors B. Insulators C. Semiconductors Answer = B

Question 30

A material which falls between allowing a current to flow easily and also prevents the current to flow is called a ?

Answer 30

A. Conductor B. Insulator C. Semiconductor Answer = C

Question 31

Potential energy will do what the further away you go from the nucleus ?

Answer 31

A. Remains the same B. Increases C. Decreases Answer = B

Question 32

The outermost occupied energy level/shell from a nucleus is called ?

Answer 32

A. Ion shell B. Kinetic shell C. Valance shell Answer = C

Question 33

Valance shells go from 'K' through to 'Q'. Turn over for number of electrons in each shell.

Answer 33

``` 'K' = 2 'L' = 8 'M' = 18 'N' = 32 'O' = 50 'P' = 72 'Q' = 98 ```

Question 34

Ionisation is ?

Answer 34

A. The removal of a valance electron from it's orbit B. The addition of a valance electron to an orbit C. The addition of a compound to the valance shell Answer = A

Question 35

Energy levels are measured in ?

Answer 35

A. Kinetic power B. Quanta C. Electron volts Answer = C

Question 36

Silver & copper are good ?

Answer 36

A. Conductors B. Insulators C. Semi-Conductors Answer = A

Question 37

Sulphur and rubber elements are good ?

Answer 37

A. Conductors B. Insulators C. Semi-Conductors Answer = B

Question 38

Germanium & silicon are ?

Answer 38

A. Conductors B. Insulators C. Semi-Conductors Answer = C

Question 39

Conductors will have have how many electrons in their outer orbit (valance shell) ?

Answer 39

A. 4 B. 6 to 8 C. 1 or 2 Answer = C

Question 40

Insulators will have have how many electrons in their outer orbit (valance shell) ?

Answer 40

A. 1 or 2 B. 4 C. 6 to 8 Answer = C

Question 41

Germanium & silicon have how many electrons in their valance shells ?

Answer 41

A. 2 B. 4 C. 8 Answer = B