A LEVEL PHYSICAL CHEMISTRY AQA | FROM QUESTION
TO PERFECTION| EVERY QUESTION SOLVED | EVERY
SCORE SECURED!
Course Code:
Course Title:
Programme:
Academic Year: 2026/2027.
Duration: 2 Hours.
Total Marks: 70%.
Candidate Instructions:
1) Write your Registration Number on every answer booklet used.
2) Answer ALL questions in Section A and ANY TWO (2) questions in Section B.
3) Read each question carefully before answering.
4) Begin each question on a new page.
5) The marks for each question are indicated in brackets.
6) This paper consists of several printed pages, including this page.
7) Ensure your copy is complete before the examination begins.
8) Unauthorized materials and communication with other candidates are not permitted.
Turn Over.
APPHIA – Crafted with Care and Precision for Academic Excellence.
1
, 1 Answer: relative mass of a proton
1 Answer: relative mass of a neutron
1/1840 Answer: relative mass of an electron
+1 Answer: relative charge of a proton
0 Answer: relative charge of a neutron
-1 Answer: Relative charge of an electron
strong nuclear force Answer: How is the nucleus held together
nuclear force Answer: is the nuclear force or electrostatic force stronger
number of protons Answer: what does the atomic number represent
atomic number z Answer: the number of protons in an atom
number of protons and neutrons Answer: what does the mass number represent
mass number (A) Answer: the number of nucleons in an atom
isotopes Answer: atoms of the same element that have different numbers of neutrons
electrons Answer: what determines the reactivity of an atom
H1/H2/H3 Answer: hydrogen isotopes
Cl35/Cl37 Answer: Chlorine isotopes
Br79/Br81 Answer: Bromine isotopes
C-14 Answer: Carbon isotope used for carbon dating
2 Answer: Number of electrons the first shell can hold
8 Answer: Number of electrons the second shell can hold
18 Answer: Number of electrons the third shell can hold
Relative Atomic Mass Answer: Ar
Relative Atomic Mass Answer: average mass of 1 atom/1/12 of 1 atom of C-12
determines the mass of separate atoms Answer: What does the mass spectrometer do?
Vacuum Answer: First step of the TOF Spectrometer
Time of Flight Mass spectrometer Answer: TOF spectrometer full
Kept under a high vacuum to avoid collisions with air molecules Answer: Vacuum step (TOF)
Ionisation Answer: Second step of the TOF spectrometer
APPHIA – Crafted with Care and Precision for Academic Excellence.
2
TO PERFECTION| EVERY QUESTION SOLVED | EVERY
SCORE SECURED!
Course Code:
Course Title:
Programme:
Academic Year: 2026/2027.
Duration: 2 Hours.
Total Marks: 70%.
Candidate Instructions:
1) Write your Registration Number on every answer booklet used.
2) Answer ALL questions in Section A and ANY TWO (2) questions in Section B.
3) Read each question carefully before answering.
4) Begin each question on a new page.
5) The marks for each question are indicated in brackets.
6) This paper consists of several printed pages, including this page.
7) Ensure your copy is complete before the examination begins.
8) Unauthorized materials and communication with other candidates are not permitted.
Turn Over.
APPHIA – Crafted with Care and Precision for Academic Excellence.
1
, 1 Answer: relative mass of a proton
1 Answer: relative mass of a neutron
1/1840 Answer: relative mass of an electron
+1 Answer: relative charge of a proton
0 Answer: relative charge of a neutron
-1 Answer: Relative charge of an electron
strong nuclear force Answer: How is the nucleus held together
nuclear force Answer: is the nuclear force or electrostatic force stronger
number of protons Answer: what does the atomic number represent
atomic number z Answer: the number of protons in an atom
number of protons and neutrons Answer: what does the mass number represent
mass number (A) Answer: the number of nucleons in an atom
isotopes Answer: atoms of the same element that have different numbers of neutrons
electrons Answer: what determines the reactivity of an atom
H1/H2/H3 Answer: hydrogen isotopes
Cl35/Cl37 Answer: Chlorine isotopes
Br79/Br81 Answer: Bromine isotopes
C-14 Answer: Carbon isotope used for carbon dating
2 Answer: Number of electrons the first shell can hold
8 Answer: Number of electrons the second shell can hold
18 Answer: Number of electrons the third shell can hold
Relative Atomic Mass Answer: Ar
Relative Atomic Mass Answer: average mass of 1 atom/1/12 of 1 atom of C-12
determines the mass of separate atoms Answer: What does the mass spectrometer do?
Vacuum Answer: First step of the TOF Spectrometer
Time of Flight Mass spectrometer Answer: TOF spectrometer full
Kept under a high vacuum to avoid collisions with air molecules Answer: Vacuum step (TOF)
Ionisation Answer: Second step of the TOF spectrometer
APPHIA – Crafted with Care and Precision for Academic Excellence.
2
