AQA GCSE Chemistry - Atomic Structure
and The Periodic Table Exam Questions
with Correct Answers 2026-2027
Substance A contains only one type of atom. Substance A does not conduct electricity. Which type of s
ubstance is A? (1)
A: Compound
B: Metallic element
C: Mixture
D: Non-metallic element - CORRECT ANSWER -D: Non-metallic element (non-
metals do not conduct electricity)
Substance B contains two types of atoms. The atoms are chemically combined together in fixed propor
tions. Which type of substance is B? (1)
A: Compound
B: Metallic element
C: Mixture
D: Non-metallic element - CORRECT ANSWER -
A: Compound (A compound is a substance made up of two or more elements chemically bonded toget
her)
What is the name of the elements in Group 0 of the periodic table? (1)
A: Alkali metals
B: Halogens
C: Noble gases
D: Transition metals - CORRECT ANSWER -C: Noble gases
Neon is in Group 0. What type of particles are in the sample of neon? (1)
A: Atoms
B: Ions
, C: Molecules - CORRECT ANSWER -A: Atoms (The smallest part of an element that can exist)
Which statement about the elements in Group 0 is correct? (1)
A: All elements in the group are very reactive
B: All elements in the group form negative ions
C: The boiling points increase down the group
D: The relative atomic masses decrease down the group - CORRECT ANSWER -
C: The boiling points increase down the group (Noble gases are not reactive as they already have full
outer shells, they don't form ions as they have a full outer shell, the boiling points increase down the
group because the intermolecular forces between the atoms need more energy to break meaning they
have a higher boiling point as it goes down the group)
In the structure of an oxide of a metal, if there were 3 X atoms and 6 O atoms, determine the empiric
al formula of the oxide (1) - CORRECT ANSWER -X3O6
to
XO2
A nanoparticle of a metallic element is a cube. The surface area of a cube is given by the equation:
(length of side)^2 *6 = surface area
If the length of the cube is 2.8nm. Calculate the surface area of the cube to 2 significant figures (3) -
CORRECT ANSWER -(2.8)^2 *6 (1)
= 47.04nm^2 (1)
= 47 nm^2 (1)
Fine and coarse particles of the metallic element are also cubes. The length of a fine particle cube is 1
0 times smaller than the length of a coarse particle cube. How does the surface area to volume ratio o
f the fine particle cube compare with that of the coarse particle cube? (1)
A: Both surface area to volume ratios are the same
B: The surface area to volume ratio of the fine particles is 10 times greater
C: The surface area to volume ratio of the fine particles is 10 times smaller - CORRECT ANSWER -
B: The surface area to volume ratio of the fine particle is 10 times greater
(If you are unsure, calculate it)
and The Periodic Table Exam Questions
with Correct Answers 2026-2027
Substance A contains only one type of atom. Substance A does not conduct electricity. Which type of s
ubstance is A? (1)
A: Compound
B: Metallic element
C: Mixture
D: Non-metallic element - CORRECT ANSWER -D: Non-metallic element (non-
metals do not conduct electricity)
Substance B contains two types of atoms. The atoms are chemically combined together in fixed propor
tions. Which type of substance is B? (1)
A: Compound
B: Metallic element
C: Mixture
D: Non-metallic element - CORRECT ANSWER -
A: Compound (A compound is a substance made up of two or more elements chemically bonded toget
her)
What is the name of the elements in Group 0 of the periodic table? (1)
A: Alkali metals
B: Halogens
C: Noble gases
D: Transition metals - CORRECT ANSWER -C: Noble gases
Neon is in Group 0. What type of particles are in the sample of neon? (1)
A: Atoms
B: Ions
, C: Molecules - CORRECT ANSWER -A: Atoms (The smallest part of an element that can exist)
Which statement about the elements in Group 0 is correct? (1)
A: All elements in the group are very reactive
B: All elements in the group form negative ions
C: The boiling points increase down the group
D: The relative atomic masses decrease down the group - CORRECT ANSWER -
C: The boiling points increase down the group (Noble gases are not reactive as they already have full
outer shells, they don't form ions as they have a full outer shell, the boiling points increase down the
group because the intermolecular forces between the atoms need more energy to break meaning they
have a higher boiling point as it goes down the group)
In the structure of an oxide of a metal, if there were 3 X atoms and 6 O atoms, determine the empiric
al formula of the oxide (1) - CORRECT ANSWER -X3O6
to
XO2
A nanoparticle of a metallic element is a cube. The surface area of a cube is given by the equation:
(length of side)^2 *6 = surface area
If the length of the cube is 2.8nm. Calculate the surface area of the cube to 2 significant figures (3) -
CORRECT ANSWER -(2.8)^2 *6 (1)
= 47.04nm^2 (1)
= 47 nm^2 (1)
Fine and coarse particles of the metallic element are also cubes. The length of a fine particle cube is 1
0 times smaller than the length of a coarse particle cube. How does the surface area to volume ratio o
f the fine particle cube compare with that of the coarse particle cube? (1)
A: Both surface area to volume ratios are the same
B: The surface area to volume ratio of the fine particles is 10 times greater
C: The surface area to volume ratio of the fine particles is 10 times smaller - CORRECT ANSWER -
B: The surface area to volume ratio of the fine particle is 10 times greater
(If you are unsure, calculate it)
