Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 3 GCE
Tuesday 12 May 2026
Morning (Time: 1 hour 30 minutes) Paper
reference 8CH0/01
Chemistry
Advanced Subsidiary
PAPER 1: Core Inorganic and Physical Chemistry
You must have: Total Marks
Scientific calculator, Data Booklet, ruler
Instructions
•• Use black ink or ball-point pen.
If pencil is used for diagrams/sketches/graphs it must be dark (HB or B).
• Fill in the boxes at the top of this page with your name,
centre number and candidate number.
• Answer all questions.
• – there may
Answer the questions in the spaces provided
be more space than you need.
Information
• The total mark for this paper is 80.
• – usemarks
The for each question are shown in brackets
this as a guide as to how much time to spend on each question.
• toForstructure
the question marked with an asterisk (*), marks will be awarded for your ability
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.
• your answers if you have time at the end.
Check Turn over
P74447A
©2026 Pearson Education Ltd.
P:1/1/1/1/1/1/1/1/
*P74447A0128*
, 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 DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
answer, put a line through the box and then mark your new answer with a cross .
1 What is the sign (if any) of ionisation energies when measured in kJ mol−1 ?
A no sign
B positive
C negative
D negative or positive
(Total for Question 1 = 1 mark)
2 Which does not indicate the existence of quantum shells in atoms?
A the atomic emission spectrum of an element
B the direction of electron spin in an atom of an element
C the first ionisation energies of successive elements
D the successive ionisation energies of electrons in an atom
(Total for Question 2 = 1 mark)
3 Which is the electronic configuration of the gallium ion, Ga3+?
The atomic number of gallium is 31.
A 1s22s22p63s23p63d84s2
B 1s22s22p63s23p63d9
C 1s22s22p63s23p63d10
D 1s22s22p63s23p63d104s2
(Total for Question 3 = 1 mark)
2
*P74447A0228*
, 4 This question is about structure and bonding in Group 4 elements and
their compounds.
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
(a) Quartz is a naturally occurring form of the compound silicon dioxide (SiO2).
Complete the dot-and-cross diagram for a section of the structure of quartz.
Show only the outer electrons for the central silicon atom and its four
surrounding oxygen atoms.
Use dots ( • ) for the silicon electrons and crosses (×) for the oxygen electrons.
(2)
Si
O
Si O Si O Si
O
Si
3
*P74447A0328* Turn over
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 3 GCE
Tuesday 12 May 2026
Morning (Time: 1 hour 30 minutes) Paper
reference 8CH0/01
Chemistry
Advanced Subsidiary
PAPER 1: Core Inorganic and Physical Chemistry
You must have: Total Marks
Scientific calculator, Data Booklet, ruler
Instructions
•• Use black ink or ball-point pen.
If pencil is used for diagrams/sketches/graphs it must be dark (HB or B).
• Fill in the boxes at the top of this page with your name,
centre number and candidate number.
• Answer all questions.
• – there may
Answer the questions in the spaces provided
be more space than you need.
Information
• The total mark for this paper is 80.
• – usemarks
The for each question are shown in brackets
this as a guide as to how much time to spend on each question.
• toForstructure
the question marked with an asterisk (*), marks will be awarded for your ability
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.
• your answers if you have time at the end.
Check Turn over
P74447A
©2026 Pearson Education Ltd.
P:1/1/1/1/1/1/1/1/
*P74447A0128*
, 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 DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
answer, put a line through the box and then mark your new answer with a cross .
1 What is the sign (if any) of ionisation energies when measured in kJ mol−1 ?
A no sign
B positive
C negative
D negative or positive
(Total for Question 1 = 1 mark)
2 Which does not indicate the existence of quantum shells in atoms?
A the atomic emission spectrum of an element
B the direction of electron spin in an atom of an element
C the first ionisation energies of successive elements
D the successive ionisation energies of electrons in an atom
(Total for Question 2 = 1 mark)
3 Which is the electronic configuration of the gallium ion, Ga3+?
The atomic number of gallium is 31.
A 1s22s22p63s23p63d84s2
B 1s22s22p63s23p63d9
C 1s22s22p63s23p63d10
D 1s22s22p63s23p63d104s2
(Total for Question 3 = 1 mark)
2
*P74447A0228*
, 4 This question is about structure and bonding in Group 4 elements and
their compounds.
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
(a) Quartz is a naturally occurring form of the compound silicon dioxide (SiO2).
Complete the dot-and-cross diagram for a section of the structure of quartz.
Show only the outer electrons for the central silicon atom and its four
surrounding oxygen atoms.
Use dots ( • ) for the silicon electrons and crosses (×) for the oxygen electrons.
(2)
Si
O
Si O Si O Si
O
Si
3
*P74447A0328* Turn over
