Free Printable AQA Chemistry Paper 1- Atoms, Elements, Compounds

1.

What is the charge of a Proton?

a)

Positive Charge

b)

Negative Charge

c)

Neutral Charge

2.

What is the Charge of an Electron?

a)

Positive Charge

b)

Negative Charge

c)

Neutral Charge

3.

What is the Charge of a Neutron?

a)

Positive Charge

b)

Negative Charge

c)

Neutral Charge

4.

What does the Nucleus of an atom contain?

a)

Protons

b)

Electrons

c)

Neutrons

5.

Which number tells you the amount of protons in an element?

a)

Atomic Number

b)

Mass Number

6.

Which number tells you the amount of protons and neutrons in an element?

a)

Atomic Number

b)

Mass Number

7.

What is an Isotope of a element?

a)

Element with same number of Protons but a different number of Neutrons.

b)

Element with same number of Neutrons but a different number of Protons.

8.

What is a compound?

a)

A substance formed from a two or more elements held by chemical bonds

b)

A mixture of two or more chemicals which provides a useful outcome

9.

What is a Mixture?

a)

A substance formed from a two or more elements held by chemical bonds

b)

A mixture of elements or compounds which can be physically separated

10.

Which one is Filtration?

a)

Used if the product is an insoluble solid and needs to be separated from a liquid. Uses filter paper

b)

Used if the product is a soluble solid. Its placed in an evaporating basin and heated until crystals form

c)

Used if the product is a soluble solid. Its placed in an evaporating basin and heated until start crystals forming then the heat is removed letting the crystals form while cool. Its then Filtered out

11.

Which one is Evaporation?

a)

Used if the product is an insoluble solid and needs to be separated from a liquid. Uses filter paper

b)

Used if the product is a soluble solid. Its placed in an evaporating basin and heated until crystals form

c)

Used if the product is a soluble solid. Its placed in an evaporating basin and heated until start crystals forming then the heat is removed letting the crystals form while cool. Its then Filtered out

12.

Which one is Crystalisation?

a)

Used if the product is an insoluble solid and needs to be separated from a liquid. Uses filter paper

b)

Used if the product is a soluble solid. Its placed in an evaporating basin and heated until crystals form

c)

Used if the product is a soluble solid. Its placed in an evaporating basin and heated until start crystals forming then the heat is removed letting the crystals form while cool. Its then Filtered out

13.

What is Simple Distillation used for?

a)

Separating out Solutions

b)

Separating out a Mixture of Liquids

14.

What is Fractional Distillation used for?

a)

Separating out Solutions

b)

Separating out a Mixture of Liquids

15.

Which one is Simple Distillation?

a)

Solution is Heated. The part with the lowest boiling point evaporates, gets cooled and Condenses and gets collected.

b)

Mixture of liquids is Heated. They rise through a fractionating column the lowest boiling point is collected, temperature is raised and then the next one is collected.

16.

What is the first step in developing the modern day model of an atom?

a)

John Dalton published his ideas about atoms. He thought that all matter was made of tiny particles called atoms, which he imagined as tiny spheres that could not be divided.

b)

J J Thomson carried out experiments and discovered the electron. He made the plum pudding model of the atom. In this model, the atom is a ball of positive charge with negative electrons embedded in it.

c)

Ernest Rutherford did the alpha scattering experiment through which he discovered that the mass of an atom is concentrated at its centre and the nucleus is positively charged. He called it the nuclear model.

d)

Niels Bohr did calculations that led him to suggest that electrons orbit the nucleus in shells. The shells are at certain distances from the nucleus.

e)

James Chadwick found evidence for the existence of particles in the nucleus with mass but no charge. These particles are called neutrons.

17.

What is the second step in developing the modern day model of an atom?

a)

John Dalton published his ideas about atoms. He thought that all matter was made of tiny particles called atoms, which he imagined as tiny spheres that could not be divided.

b)

J J Thomson carried out experiments and discovered the electron. He made the plum pudding model of the atom. In this model, the atom is a ball of positive charge with negative electrons embedded in it.

c)

Ernest Rutherford did the alpha scattering experiment through which he discovered that the mass of an atom is concentrated at its centre and the nucleus is positively charged. He called it the nuclear model.

d)

Niels Bohr did calculations that led him to suggest that electrons orbit the nucleus in shells. The shells are at certain distances from the nucleus.

e)

James Chadwick found evidence for the existence of particles in the nucleus with mass but no charge. These particles are called neutrons.

18.

What is the third step in developing the modern day model of an atom?

a)

John Dalton published his ideas about atoms. He thought that all matter was made of tiny particles called atoms, which he imagined as tiny spheres that could not be divided.

b)

J J Thomson carried out experiments and discovered the electron. He made the plum pudding model of the atom. In this model, the atom is a ball of positive charge with negative electrons embedded in it.

c)

Ernest Rutherford did the alpha scattering experiment through which he discovered that the mass of an atom is concentrated at its centre and the nucleus is positively charged. He called it the nuclear model.

d)

Niels Bohr did calculations that led him to suggest that electrons orbit the nucleus in shells. The shells are at certain distances from the nucleus.

e)

James Chadwick found evidence for the existence of particles in the nucleus with mass but no charge. These particles are called neutrons.

19.

What is the fourth step in developing the modern day model of an atom?

a)

John Dalton published his ideas about atoms. He thought that all matter was made of tiny particles called atoms, which he imagined as tiny spheres that could not be divided.

b)

J J Thomson carried out experiments and discovered the electron. He made the plum pudding model of the atom. In this model, the atom is a ball of positive charge with negative electrons embedded in it.

c)

Ernest Rutherford did the alpha scattering experiment through which he discovered that the mass of an atom is concentrated at its centre and the nucleus is positively charged. He called it the nuclear model.

d)

Niels Bohr did calculations that led him to suggest that electrons orbit the nucleus in shells. The shells are at certain distances from the nucleus.

e)

James Chadwick found evidence for the existence of particles in the nucleus with mass but no charge. These particles are called neutrons.

20.

What is the fifth step in developing the modern day model of an atom?

a)

John Dalton published his ideas about atoms. He thought that all matter was made of tiny particles called atoms, which he imagined as tiny spheres that could not be divided.

b)

J J Thomson carried out experiments and discovered the electron. He made the plum pudding model of the atom. In this model, the atom is a ball of positive charge with negative electrons embedded in it.

c)

Ernest Rutherford did the alpha scattering experiment through which he discovered that the mass of an atom is concentrated at its centre and the nucleus is positively charged. He called it the nuclear model.

d)

Niels Bohr did calculations that led him to suggest that electrons orbit the nucleus in shells. The shells are at certain distances from the nucleus.

e)

James Chadwick found evidence for the existence of particles in the nucleus with mass but no charge. These particles are called neutrons.

21.

What is the picture displayed?

a)

atom

b)

element

c)

molecule

d)

compound

22.

What is the picture displayed?

a)

atom

b)

element

c)

molecule

d)

compound

23.

What is the picture displayed?

a)

atom

b)

element

c)

molecule

d)

compound

24.

How could a mixture of food colourings be separated?

a)

A. Chromatography

b)

B. Filtration

c)

C. Fractional distillation

d)

D. Sieving

25.

What does the plum pudding model of the atom suggest?

a)

A. An atom has a positive nucleus orbited by negative electrons.

b)

B. An atom has a distinct nucleus.

c)

C. An atom is a ball of dilute positive charge with neutrons in it

d)

D. An atom is a ball of dilute positive charge with electrons in it.

26.

Who discovered the electron?

a)

A. Ernest Rutherford

b)

B. JJ Thompson

c)

C. Niels Bohr

d)

D. Copernicus

27.

The nuclear model of the atom tells us that:

a)

A. The mass of the atom is concentrated at the centre

b)

B. An atom has protons, neutrons and electrons in the nucleus.

c)

C. An atom has electrons in the nucleus

d)

D. An atom has a nucleus made up of neutrons only

28.

Which of these statements best describes how scientific ideas became accepted?

a)

A. New evidence is discovered which is published if it is likely to make a lot of money.

b)

B. New evidence is discovered and published.

c)

C. New evidence is discovered, peer reviewed and published

d)

D. Scientists ignore new evidence if it does not agree with important theories.

29.

What is the definition of an isotope?

a)

A. Atoms of the same element that have different number of protons.

b)

B. Atoms of the same elements that have different number of electrons.

c)

C. Two atoms of the same elements that have different number of neutrons.

d)

D. Two molecules of water.

30.

What is 5?

a)

cooling tube

b)

condenser

c)

distillate

d)

water pump

31.

What is 6 and 7?

a)

6: water in / 7: water out

b)

6: water out / 7: water in

32.

What is filtration?

a)

A method used to separate a solid from a liquid that dissolves in the liquid

b)

A separating technique used to separate a mixture of a solid and liquid where the solid does not dissolve in the liquid

33.

Most simple water purification devices used in the home use filtration as their main method of purifying the water

a)

True

b)

False

34.

The part of the mixture that passes through the filter paper is called the

a)

residue

b)

filtrate

c)

suspension

35.

Identify the Reactants in this equation.

a)

A

b)

B

36.

How many oxygen atoms are present in the following?
4Ca(OH)₂

a)

4

b)

6

c)

8

d)

1

37.

Fill in the blank to balance the chemical equation.
2KI + ____Cl₂→ 2KCl + I₂

a)

1

b)

2

c)

3

d)

4

38.

What number should go in the blank space to balance the chemical equation?

2Al +____ HCl → 2AlCl₃ + 3H2

a)

2

b)

4

c)

3

d)

6

39.

Which of the following represent chemical equations? Check all that apply.

a)

$2Na\ +\ H_2O\ \rightarrow\ 2NaOH\ +\ H_2$

b)

$2KClO_3\ \ \rightarrow\ 2KCl\ +\ 3O_2$

c)

$2Fe\ +\ 3O_{2\ }\rightarrow\ 2Fe_2O_3$

d)

$2H_2O$

e)

$3O_3\ ,\ H_2O$

AQA Chemistry Paper 1- Atoms, Elements, Compounds

Total questions: 39

Worksheet time: 47mins

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