PRACTICE PAPER FOR 2026 SUMMER EXAMS
Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 3 GCE
2025 Predicted Paper
Morning (Time: 1 hour 45 minutes) Paper
reference 9CH0/01
Chemistry
Advanced
PAPER 1: Advanced Inorganic and Physical Chemistry
You must have: Total Marks
Scientific calculator, Data Booklet, ruler
Instructions
• Use black ink or ball‑point pen.
• IfFillpencil is used for diagrams/sketches/graphs it must be dark (HB or B).
• centre number
in the boxes at the top of this page with your name,
and candidate number.
• Answer all questions.
• Answer the 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.
•
Show all your working in calculations and include units where appropriate.
Check your answers if you have time at the end.
Turn over
, PRACTICE PAPER FOR 2026 SUMMER EXAMS
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 is a question about atoms, isotopes and ions.
(a) Which statement correctly describes the difference between the isotopes 12C and 14C?
A They have different numbers of protons and the same
number of neutrons (1)
B They have the same mass number but different atomic
numbers.
C They have the same number of protons but different
numbers of neutrons.
D They have different electrons and the same number of
neutrons
(b) The table below shows the first ionisation energies of four consecutive elements in Period
3 of the Periodic Table (values are in kJ mol⁻¹):
Use the values in the table to identify which element is aluminium.
(1)
Element IE
A 1012
B 1000
C 578
D 738
. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. . . . ......................
2
, PRACTICE PAPER FOR 2026 SUMMER EXAMS
(c) The total number of electrons in all the occupied p orbitals in a nitride ion N-3 is:
(1)
A 3
B 6
C 9
D 12
(d) Which of the following isoelectronic ions has the smallest ionic radius?
(1)
A F⁻
B Na⁺
C O²⁻
D Mg+2
(e) The correct order of increasing first ionization energy for these elements is
(1)
A Mg < Al < Si
B Al < Mg < Si
C Al < Si < Mg
D Si < Al < Mg
(Total for Question 1 = 5 marks)
3
Turn over
Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 3 GCE
2025 Predicted Paper
Morning (Time: 1 hour 45 minutes) Paper
reference 9CH0/01
Chemistry
Advanced
PAPER 1: Advanced Inorganic and Physical Chemistry
You must have: Total Marks
Scientific calculator, Data Booklet, ruler
Instructions
• Use black ink or ball‑point pen.
• IfFillpencil is used for diagrams/sketches/graphs it must be dark (HB or B).
• centre number
in the boxes at the top of this page with your name,
and candidate number.
• Answer all questions.
• Answer the 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.
•
Show all your working in calculations and include units where appropriate.
Check your answers if you have time at the end.
Turn over
, PRACTICE PAPER FOR 2026 SUMMER EXAMS
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 is a question about atoms, isotopes and ions.
(a) Which statement correctly describes the difference between the isotopes 12C and 14C?
A They have different numbers of protons and the same
number of neutrons (1)
B They have the same mass number but different atomic
numbers.
C They have the same number of protons but different
numbers of neutrons.
D They have different electrons and the same number of
neutrons
(b) The table below shows the first ionisation energies of four consecutive elements in Period
3 of the Periodic Table (values are in kJ mol⁻¹):
Use the values in the table to identify which element is aluminium.
(1)
Element IE
A 1012
B 1000
C 578
D 738
. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. . . . ......................
2
, PRACTICE PAPER FOR 2026 SUMMER EXAMS
(c) The total number of electrons in all the occupied p orbitals in a nitride ion N-3 is:
(1)
A 3
B 6
C 9
D 12
(d) Which of the following isoelectronic ions has the smallest ionic radius?
(1)
A F⁻
B Na⁺
C O²⁻
D Mg+2
(e) The correct order of increasing first ionization energy for these elements is
(1)
A Mg < Al < Si
B Al < Mg < Si
C Al < Si < Mg
D Si < Al < Mg
(Total for Question 1 = 5 marks)
3
Turn over
