Periodic tableIB MYP Sciences: Topic test

20 questions, 54 marks

IB MYP Sciences

Periodic table topic test

Total 54 marks

Name

Class

Date

1
A school in Tokyo plays a card game with the elements. Each card gives the position of an element in the periodic table: aluminium is in Group 3 and Period 3, boron is in Group 3 and Period 2, oxygen is in Group 6 and Period 2, and calcium is in Group 2 and Period 4.
(a)
Which statement about boron and aluminium is correct?
[1 mark]
ATheir atoms have the same number of electron shells.
BTheir atoms have the same number of outer-shell electrons.
CTheir atoms have the same number of protons.
DTheir atoms have the same total number of electrons.
(b)
What is the electron configuration of a calcium atom?
[1 mark]
A2,8,2
B2,8,8
C2,8,10
D2,8,8,2
(c)
Use the position of aluminium in the periodic table to state the number of electron shells and the number of outer-shell electrons in an aluminium atom. Explain how you worked this out.
[2 marks]
Total for question 1: 4 marks
2
A student in Warsaw adds chlorine water to a colourless solution of potassium bromide, and the solution turns orange.
(a)
Which statement explains why chlorine displaces bromine from potassium bromide solution?
[1 mark]
AChlorine is more reactive than bromine.
BChlorine is less reactive than bromine.
CChlorine has a higher melting point than bromine.
DChlorine atoms have more electron shells than bromine atoms.
(b)
What would the student see if she added bromine water to potassium chloride solution?
[1 mark]
AThe solution turns green.
BA white solid forms.
CThere is no reaction, because bromine is less reactive than chlorine.
DBubbles of chlorine gas are given off.
(c)
State the order of reactivity of chlorine, bromine and iodine, and write a word equation for the reaction between chlorine and potassium bromide.
[2 marks]
Total for question 2: 4 marks
3
A teacher in Lisbon shows her class sealed samples of three Group 1 metals. Sodium and potassium are stored under oil. Caesium, which is below potassium in Group 1, is sealed in a glass tube filled with argon. The melting points are sodium 98 °C, potassium 63 °C and caesium 28 °C.
(a)
Explain why the Group 1 metals must be kept away from air and water, and why the caesium is sealed under argon instead of oil.
[3 marks]
(b)
Describe the trend in melting point down Group 1. Predict how caesium reacts with water compared with sodium, name the two products, and state what universal indicator would show.
[4 marks]
Total for question 3: 7 marks
4
Chile is the world's largest producer of copper. Copper is used for electrical wiring and water pipes because it is a good conductor of electricity, can be drawn into wires and bent into shape, and does not react with water. Brass, an alloy of copper and zinc, is used for taps and musical instruments. Mining copper in the dry Atacama region uses large amounts of water and energy and leaves large open pits, but the mines employ thousands of workers. Copper can be recycled many times without losing its properties.
(a)
Explain, using the properties of metals, why copper is suitable for electrical wiring and for water pipes, and why brass is used instead of pure copper for some objects.
[6 marks]
(b)
Discuss and evaluate the social, economic and environmental implications of mining and recycling copper. Finish with a justified conclusion.
[6 marks]
Total for question 4: 12 marks
5
A student in Vancouver places a strip of zinc in copper(II) sulfate solution, a piece of copper in zinc sulfate solution, and a strip of magnesium in dilute hydrochloric acid. From most to least reactive, the order of the metals is magnesium, zinc, copper.
(a)
What does the student observe in the zinc and copper(II) sulfate solution?
[1 mark]
AThere is no change.
BThe zinc grows larger and the blue colour gets darker.
CThe zinc becomes coated with a brown solid and the blue colour fades.
DBubbles of hydrogen gas form on the zinc.
(b)
What are the products when magnesium reacts with dilute hydrochloric acid?
[1 mark]
AMagnesium oxide and hydrogen
BMagnesium chloride and hydrogen
CMagnesium chloride and water
DMagnesium hydroxide and carbon dioxide
(c)
There is no reaction when the copper is placed in zinc sulfate solution. Explain why, and name the type of reaction that happens with the zinc in copper(II) sulfate solution.
[2 marks]
Total for question 5: 4 marks
6
Noble gases have many uses. Argon is used to fill the light bulbs in a factory in Pune, neon is used in advertising signs in Hong Kong, and helium is used to fill party balloons.
(a)
Why is argon suitable for filling light bulbs?
[1 mark]
AIt is lighter than air.
BIt conducts electricity very well.
CIt burns with a bright light.
DIt is unreactive, so it does not react with the hot filament.
(b)
Neon has atomic number 10. What is its electron configuration?
[1 mark]
A2,8
B2,8,8
C2,7
D2,8,1
(c)
Explain why helium rather than hydrogen is used to fill party balloons.
[2 marks]
Total for question 6: 4 marks
7
A student in Kolkata investigates three solid elements. Solid W is shiny, conducts electricity, can be hammered into a thin sheet and melts at 650 °C. Solid X is a yellow powder that is brittle, does not conduct electricity and melts at 115 °C. Solid Y is a shiny grey solid that shatters when hit, conducts electricity poorly and melts at 1414 °C. She then burns a sample of W and a sample of X in oxygen and shakes each product with water containing universal indicator.
(a)
State whether W and X are metals or non-metals, giving one piece of evidence for each. Suggest what type of element Y is and where it is found in the periodic table.
[3 marks]
(b)
Predict what the universal indicator shows for the product of each burning, and name the type of oxide. State what happens when W is added to dilute hydrochloric acid, and why X would not react in the same way.
[4 marks]
Total for question 7: 7 marks
8
A cable company in Gdansk is choosing between copper, aluminium and iron for electric cables. A technician connects 1.0 m lengths of very thin wire, each 0.1 mm in diameter, in turn in a circuit with a 1.5 V cell and an ammeter. The currents are 0.52 A for copper, 0.34 A for aluminium and 0.09 A for iron. Each wire was tested once. She notes that aluminium is lighter and cheaper than copper, and that iron is the cheapest but rusts.
(a)
The company also wants to know whether the thickness of aluminium wire affects how well it conducts. Plan an investigation. In your answer, state a hypothesis with a scientific reason, identify the variables, and describe a safe method.
[6 marks]
(b)
Process the technician's data and evaluate her method and results. Finish with a justified conclusion about which metal the company should choose for its cables.
[6 marks]
Total for question 8: 12 marks

End of questions

Written by the Exaim team, led by Shaun Daswani (Head of Upper Secondary, Improve ME Institute; MSc Financial Mathematics, Imperial College London; BSc, UCL) and Jason Daswani (operational lead, Improve ME Institute; LSE).