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AQA gcse chemistry paper 1

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  • December 22, 2024
  • 26
  • 2023/2024
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1.Atomic Structure & Periodic
Table Mastery Booklet
(Chemistry Paper 1)




Name: ______________________
Year group: ____________________

Total: __________________


Page 1 of 26

,Q1.
There are eight elements in the second row (lithium to neon) of the periodic table.

(a) Figure 1 shows a lithium atom.




(i) What is the mass number of the lithium atom in Figure 1?

Tick (✔) one box.

3


4


7

(1)

(ii) What is the charge of an electron?

Tick (✔) one box.

–1


0


+1



Page 2 of 26

, (1)

(iii) Protons are in the nucleus.

Which other sub-atomic particles are in the nucleus?

Tick (✔) one box.

ions


molecules


neutrons

(1)

(b) What is always different for atoms of different elements?

Tick (✔) one box.

number of neutrons


number of protons


number of shells

(1)

(c) Figure 2 shows the electron arrangements of three different atoms, X, Y and Z.

These atoms are from elements in the second row (lithium to neon) of the periodic table.




Which atom is from an element in Group 3 of the periodic table?

Tick (✔) one box.

Atom X


Atom Y


Atom Z

(1)

(d) Figure 3 shows the electron arrangement of a different atom from an element in the second



Page 3 of 26

, row of the periodic table.




(i) Give the chemical symbol of this element.

______________________________________________________________
(1)

(ii) Why is this element unreactive?

______________________________________________________________

______________________________________________________________
(1)
(Total 7 marks)


Q2.
There are eight elements in the second row (lithium to neon) of the periodic table.

(a) Figure 1 shows an atom with two energy levels (shells).




(i) Complete Figure 1 to show the electronic structure of a boron atom.
(1)

(ii) What does the central part labelled Z represent in Figure 1?

____________________________________
(1)

(iii) Name the sub-atomic particles in part Z of a boron atom.

Give the relative charges of these sub-atomic particles.

______________________________________________________________

______________________________________________________________

______________________________________________________________


Page 4 of 26

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