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Back to AQA CS Trilogy C1 Specimen (set 1) Home

Paper 1 H - SAMPLE SET 1 Q3 Answers

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Questions
3) Elements are made up of atoms.

3.1) What is the approximate radius of an atom? [1 mark]
​Tick one box
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Figure 4 shows the atoms of five elements.
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The letters are not the symbols of these elements.

3.2) Complete the sentence. [1 mark]
All of the elements in Figure 3 are in Group __________________________ of the periodic table.

3.3) Which two atoms in Figure 4 are isotopes of the same element?
Explain your answer fully. [3 marks]

3.4) The halogens are in Group 7 of the periodic table.
​Explain the trend in reactivity of the halogens. [6 marks]


​​​​(Total for Question 3 = 11 marks)
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