MERGED QUESTION PAPER> MARK SCHEME> 100% GUARANTEE
surname names
Number Number
Morning (Time: 1 hour 45 minutes) Paper
Chemistry ■ ■
Advanced
PAPER 1: Advanced Inorganic and Physical Chemistry
Instructions
• If pencil is used for diagrams/sketches/graphs it must be dark (HB or B).
centre number and candidate number.
Answer the questions in the spaces provided
– there may be more space than you need.
Information
• The total mark for this paper is 90.
– 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
• Show all your working in calculations and include units where appropriate.
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
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.
(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)
(Total for Question 1 = 6 marks)
2
,MERGED QUESTION PAPER> MARK SCHEME> 100% GUARANTEE
■■■■
, 2 This question is about the formation of ions.
(a) Explain the trend in the values of the first electron affinities of the
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?
■
■
■ A S2−
■
B Cl−
C K+
D Ca2+
surname names
Number Number
Morning (Time: 1 hour 45 minutes) Paper
Chemistry ■ ■
Advanced
PAPER 1: Advanced Inorganic and Physical Chemistry
Instructions
• If pencil is used for diagrams/sketches/graphs it must be dark (HB or B).
centre number and candidate number.
Answer the questions in the spaces provided
– there may be more space than you need.
Information
• The total mark for this paper is 90.
– 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
• Show all your working in calculations and include units where appropriate.
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
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.
(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)
(Total for Question 1 = 6 marks)
2
,MERGED QUESTION PAPER> MARK SCHEME> 100% GUARANTEE
■■■■
, 2 This question is about the formation of ions.
(a) Explain the trend in the values of the first electron affinities of the
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?
■
■
■ A S2−
■
B Cl−
C K+
D Ca2+
