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GCSE
CHEMISTRY
Higher Tier Paper 1
H
Monday 22 May 2023 Morning Time allowed: 1 hour 45 minutes
Materials
For this paper you must have:
a ruler
a scientific calculator
the periodic table (enclosed). For Examiner’s Use
Question Mark
Instructions
Use black ink or black ball-point pen. 1
Pencil should only be used for drawing. 2
Fill in the boxes at the top of this page.
3
Answer all questions in the spaces
provided. Do not write outsidethe box 4
around each page or on blank pages. 5
If you need extra space for your answer(s), use 6
the lined pages at the end ofthis book. Write the
7
question number against your answer(s).
Do all rough work in this book. Cross through any work you do not want 8
to be marked. 9
In all calculations, show clearly how you work out your answer.
10
Information TOTAL
The maximum mark for this paper is 100.
The marks for questions are shown in brackets.
You are expected to use a calculator where appropriate.
You are reminded of the need for good
English and clear presentationin your
answers.
,0 1 Discoveries in chemistry led to a better understanding of atomic structure.
GCSE
CHEMISTRY
Higher Tier Paper 1
Monday 22 May 2023 Morning Time allowed: 1 hour 45 minutes
Materials
For this paper you must have:
a ruler
a scientific calculator
the periodic table (enclosed).
Instructions
Use black ink or black ball-point pen.
Pencil should only be used for drawing.
Fill in the boxes at the top of this page.
Answer all questions in the spaces provided. Do not write outside
the box around each page or on blank pages.
If you need extra space for your answer(s), use the lined pages at the end of
this book. Write the question number against your answer(s).
Do all rough work in this book. Cross through any work you do not want
to be marked.
In all calculations, show clearly how you work out your answer.
Information
The maximum mark for this paper is 100.
The marks for questions are shown in brackets.
You are expected to use a calculator where appropriate.
You are reminded of the need for good English and clear presentation
in your answers.
, 2
Do not write
outside the
box
Discoveries in chemistry led to a better understanding of atomic structure.
0 1 . 1 Atoms were originally thought to be tiny spheres that could not be divided.
The plum pudding model of the atom was then developed.
Figure 1 represents the plum pudding model of the atom.
Figure 1
Describe the plum pudding model of the atom.
[2 marks]
0 1 . 2 Atoms contain electrons, neutrons and protons.
Write these three particles in order of their discovery.
[1 mark]
Earliest
Latest
*02*
, 3
Do not write
outside the
Very few atoms of the element tennessine (Ts) have ever been identified. box
The atomic number of tennessine is 117
0 1 . 3 Predict the number of outer shell electrons in an atom of tennessine.
Give one reason for your answer.
Use the periodic table.
[2 marks]
Number of outer shell electrons
Reason
0 1 . 4 Tennessine was first identified by a small group of scientists in 2010.
Suggest one reason why tennessine was not accepted as a new element by other
scientists until 2015.
[1 mark]
Question 1 continues on the next page
Turn over ►
IB/M/Jun23/8462/1H
*03*
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