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Pearson Edexcel Level 3 GCE Chemistry Advanced PAPER 1: Advanced Inorganic and Physical Chemistry QP JUNE 2024

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Pearson Edexcel Level 3 GCE Chemistry Advanced PAPER 1: Advanced Inorganic and Physical Chemistry QP JUNE 2024

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  • September 30, 2024
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Morning (Time: 1 hour 45 minutes) Paper


Chemistry ■ ■


Advanced
PAPER 1: Advanced Inorganic and Physical Chemistry




Instructions
•• Use black ink or ball-point pen.

• number
If pencil is used for diagrams/sketches/graphs it must be dark (HB or B). centre
Fill in the
andboxes at the
candidate top of this page with your name,
number.

•• Answer
Answer theall questions
questions. in the spaces provided –
there may be more space than you need.

Information

•• The total mark for this paper is 90.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• For the question marked with an asterisk (*), marks will be awarded for your ability to structure
your answer logically, showing the points that you make are related or follow on from each

•
other where appropriate.
A Periodic Table is printed on the back cover of this paper.

Advice
•• Read each question carefully before you start to answer it.

• Check your answers if you have time at the end.
Show all your working in calculations and include units where appropriate.


Pearson Edexcel Level 3 GCE Chemistry Advanced PAPER 1: Advanced Inorganic and Physical Chemistry QP JUNE 2024
Turn over


P76895A
©2024 Pearson Education Ltd.
F:1/1/1/1/

, Answer ALL questions.

Some questions must be answered with a cross in a box . If you change your mind about an




DO NOT WRITE IN THIS AREA
answer, put a line through the box and then mark your new answer with a cross .

1 This question is about atomic structure.
(a) Complete the table.
(3)


Species Number of protons Number of neutrons Number of electrons
32
S
33
S
34 2−
S


(b) A sample of sulfur was found to contain only four isotopes.




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(i) Complete the table to show the percentage abundance of 34S.
(1)

32 33 34 36
Isotope S S S S

Percentage
95.02 0.75 0.02
abundance


(ii) Calculate the relative atomic mass (Ar ) of the sulfur in this sample using the data in the
table. Give your answer to two decimal places.
(2)



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(Total for Question 1 = 6 marks)



2
■■■■

, 2 This question is about the formation of ions.

(a) Explain the trend in the values of the first electron affinities of the
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elements shown.
(4)


Element First electron affinity / kJ mol−1

chlorine −349

bromine −325

iodine −295


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(b) Which of these isoelectronic ions has the smallest ionic radius?
(1)
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A S2−
B Cl−
C K+
D Ca2+




3
■■■■ Turn over

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