Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
AS
CHEMISTRY
Paper 1 Inorganic and Physical Chemistry
Tuesday 16 May 2023 Morning Time allowed: 1 hour 30 minutes
Materials
For this paper you must have: For Examiner’s Use
• the Periodic Table/Data Sheet, provided as an insert (enclosed)
• a ruler with millimetre measurements Question Mark
• a scientific calculator, which you are expected to use where appropriate. 1
2
Instructions
3
• Use black ink or black ball-point pen.
• Fill in the boxes at the top of this page. 4
• Answer all questions. 5
• You must answer the questions in the spaces provided. Do not write outside 6
the box around each page or on blank pages.
7
• 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). 8
• All working must be shown. Section B
• Do all rough work in this book. Cross through any work you do not
want to be marked. TOTAL
Information
• The marks for questions are shown in brackets.
• The maximum mark for this paper is 80.
Advice
You are advised to spend about 65 minutes on Section A and 25 minutes on Section B.
*JUN237404101*
IB/M/Jun23/E7 7404/1
, 2
Do not write
outside the
Section A box
Answer all questions in this section.
0 1 This question is about the elements in Period 3.
0 1 . 1 Give the full electron configuration of the element in Period 3 with the highest
first ionisation energy.
[1 mark]
0 1 . 2 Give an equation, including state symbols, to represent the process that occurs when
the second ionisation energy of sodium is measured.
[1 mark]
0 1 . 3 Table 1 shows some successive ionisation energies for an element in Period 3.
Table 1
Ionisation number 1 2 3 4 5 6 7 8
Ionisation energy /
–1 1000 2260 3390 4540 6990 8490 27 100 31 700
kJ mol
Identify the Period 3 element.
Explain your answer.
[3 marks]
Element
Explanation
5
*02*
IB/M/Jun23/7404/1
, 3
Do not write
outside the
0 2 This question is about the elements in Group 2. box
0 2 . 1 Describe the structure and bonding in magnesium.
[2 marks]
0 2 . 2 State the trend in the atomic radius of the elements down Group 2 from Mg to Ba
Give a reason for this trend.
[2 marks]
Trend
Reason
0 2 . 3 Give an equation, including state symbols, for the reaction of magnesium with steam.
State two observations for this reaction.
[3 marks]
Equation
Observation 1
Observation 2
Question 2 continues on the next page
Turn over ►
*03*
IB/M/Jun23/7404/1
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
AS
CHEMISTRY
Paper 1 Inorganic and Physical Chemistry
Tuesday 16 May 2023 Morning Time allowed: 1 hour 30 minutes
Materials
For this paper you must have: For Examiner’s Use
• the Periodic Table/Data Sheet, provided as an insert (enclosed)
• a ruler with millimetre measurements Question Mark
• a scientific calculator, which you are expected to use where appropriate. 1
2
Instructions
3
• Use black ink or black ball-point pen.
• Fill in the boxes at the top of this page. 4
• Answer all questions. 5
• You must answer the questions in the spaces provided. Do not write outside 6
the box around each page or on blank pages.
7
• 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). 8
• All working must be shown. Section B
• Do all rough work in this book. Cross through any work you do not
want to be marked. TOTAL
Information
• The marks for questions are shown in brackets.
• The maximum mark for this paper is 80.
Advice
You are advised to spend about 65 minutes on Section A and 25 minutes on Section B.
*JUN237404101*
IB/M/Jun23/E7 7404/1
, 2
Do not write
outside the
Section A box
Answer all questions in this section.
0 1 This question is about the elements in Period 3.
0 1 . 1 Give the full electron configuration of the element in Period 3 with the highest
first ionisation energy.
[1 mark]
0 1 . 2 Give an equation, including state symbols, to represent the process that occurs when
the second ionisation energy of sodium is measured.
[1 mark]
0 1 . 3 Table 1 shows some successive ionisation energies for an element in Period 3.
Table 1
Ionisation number 1 2 3 4 5 6 7 8
Ionisation energy /
–1 1000 2260 3390 4540 6990 8490 27 100 31 700
kJ mol
Identify the Period 3 element.
Explain your answer.
[3 marks]
Element
Explanation
5
*02*
IB/M/Jun23/7404/1
, 3
Do not write
outside the
0 2 This question is about the elements in Group 2. box
0 2 . 1 Describe the structure and bonding in magnesium.
[2 marks]
0 2 . 2 State the trend in the atomic radius of the elements down Group 2 from Mg to Ba
Give a reason for this trend.
[2 marks]
Trend
Reason
0 2 . 3 Give an equation, including state symbols, for the reaction of magnesium with steam.
State two observations for this reaction.
[3 marks]
Equation
Observation 1
Observation 2
Question 2 continues on the next page
Turn over ►
*03*
IB/M/Jun23/7404/1
