Oxford Cambridge and RSA
F
Friday 19 November 2021 – Morning
GCSE (9–1) Combined Science B
(Twenty First Century Science)
J260/02 Chemistry (Foundation Tier)
Time allowed: 1 hour 45 minutes
* 8 3 4 7 9 2 1 2 2 6 *
You must have:
• a ruler (cm/mm)
• the Data Sheet for GCSE (9–1) Combined Science
(Chemistry) B (inside this document)
You can use:
• an HB pencil
• a scientific or graphical calculator * J 2 6 0 0 2 *
Please write clearly in black ink. Do not write in the barcodes.
Centre number Candidate number
First name(s)
Last name
INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided. If you need extra space use
the lined pages at the end of this booklet. The question numbers must be clearly shown.
• Answer all the questions.
• Where appropriate, your answer should be supported with working. Marks might be
given for using a correct method, even if your answer is wrong.
INFORMATION
• The total mark for this paper is 95.
• The marks for each question are shown in brackets [ ].
• Quality of extended response will be assessed in questions marked with an asterisk (*).
• This document has 32 pages.
ADVICE
• Read each question carefully before you start your answer.
© OCR 2021 [601/8690/2] OCR is an exempt Charity
DC (LK/SG) 300855/6 Turn over
, 2
Answer all the questions.
1 Mendeleev organised elements into the first Periodic Table.
(a) (i) What information did Mendeleev use to help him decide the order of the elements?
Tick (✓) one box.
Alphabetical order
Colour
Date discovered
Relative atomic mass
[1]
(ii) Mendeleev left gaps in the table.
Give one reason why he needed to leave gaps.
...........................................................................................................................................
...................................................................................................................................... [1]
(b) (i) Fig. 1.1 shows the electron arrangement in a lithium atom.
Li
Fig. 1.1
Draw lines to connect each statement about the number and arrangement of electrons in
a lithium atom with the correct information in the Periodic Table.
Number and arrangement of Information in the
electrons in a lithium atom Periodic Table
Number of electrons in the
Atomic number
outer shell
Number of electron shells Group number
Total number of electrons Period number
[2]
© OCR 2021
, 3
(ii) The properties of an element depend on the arrangement of electrons in its atoms.
Lithium and fluorine have different arrangements of electrons, and different properties.
Fig. 1.2 shows the electron arrangement of fluorine.
F
Fig. 1.2
Complete the table about the properties of lithium and fluorine.
Put a ring around the correct answers.
Lithium – Group 1 Fluorine – Group 7
Metal / non-metal Metal / non-metal
Loses / gains electrons to form Loses / gains electrons to form
ions ions
Forms positive / negative ions Forms positive / negative ions
[2]
© OCR 2021 Turn over
, 4
2 Ideas about the structure of the atom have developed over time.
(a) (i) Draw lines to connect each scientist with their idea about the structure of the atom.
Scientist Idea
Bohr Atoms contain a nucleus.
Electrons are arranged in
Rutherford
shells.
An atom is like a ‘plum
Thomson
pudding’.
[2]
(ii) Give one reason why scientists needed to develop new ideas about the structure of the
atom over time.
...........................................................................................................................................
...................................................................................................................................... [1]
(b) Scientists now know that the atom contains electrons, protons and neutrons.
(i) Complete the table by giving the charge of each of these particles.
Particle Charge
Electron
...................
Proton
...................
Neutron
...................
[1]
(ii) Electrons are arranged in shells around the outside of the atom.
Give the location of the other particles in the atom.
...................................................................................................................................... [1]
© OCR 2021
F
Friday 19 November 2021 – Morning
GCSE (9–1) Combined Science B
(Twenty First Century Science)
J260/02 Chemistry (Foundation Tier)
Time allowed: 1 hour 45 minutes
* 8 3 4 7 9 2 1 2 2 6 *
You must have:
• a ruler (cm/mm)
• the Data Sheet for GCSE (9–1) Combined Science
(Chemistry) B (inside this document)
You can use:
• an HB pencil
• a scientific or graphical calculator * J 2 6 0 0 2 *
Please write clearly in black ink. Do not write in the barcodes.
Centre number Candidate number
First name(s)
Last name
INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided. If you need extra space use
the lined pages at the end of this booklet. The question numbers must be clearly shown.
• Answer all the questions.
• Where appropriate, your answer should be supported with working. Marks might be
given for using a correct method, even if your answer is wrong.
INFORMATION
• The total mark for this paper is 95.
• The marks for each question are shown in brackets [ ].
• Quality of extended response will be assessed in questions marked with an asterisk (*).
• This document has 32 pages.
ADVICE
• Read each question carefully before you start your answer.
© OCR 2021 [601/8690/2] OCR is an exempt Charity
DC (LK/SG) 300855/6 Turn over
, 2
Answer all the questions.
1 Mendeleev organised elements into the first Periodic Table.
(a) (i) What information did Mendeleev use to help him decide the order of the elements?
Tick (✓) one box.
Alphabetical order
Colour
Date discovered
Relative atomic mass
[1]
(ii) Mendeleev left gaps in the table.
Give one reason why he needed to leave gaps.
...........................................................................................................................................
...................................................................................................................................... [1]
(b) (i) Fig. 1.1 shows the electron arrangement in a lithium atom.
Li
Fig. 1.1
Draw lines to connect each statement about the number and arrangement of electrons in
a lithium atom with the correct information in the Periodic Table.
Number and arrangement of Information in the
electrons in a lithium atom Periodic Table
Number of electrons in the
Atomic number
outer shell
Number of electron shells Group number
Total number of electrons Period number
[2]
© OCR 2021
, 3
(ii) The properties of an element depend on the arrangement of electrons in its atoms.
Lithium and fluorine have different arrangements of electrons, and different properties.
Fig. 1.2 shows the electron arrangement of fluorine.
F
Fig. 1.2
Complete the table about the properties of lithium and fluorine.
Put a ring around the correct answers.
Lithium – Group 1 Fluorine – Group 7
Metal / non-metal Metal / non-metal
Loses / gains electrons to form Loses / gains electrons to form
ions ions
Forms positive / negative ions Forms positive / negative ions
[2]
© OCR 2021 Turn over
, 4
2 Ideas about the structure of the atom have developed over time.
(a) (i) Draw lines to connect each scientist with their idea about the structure of the atom.
Scientist Idea
Bohr Atoms contain a nucleus.
Electrons are arranged in
Rutherford
shells.
An atom is like a ‘plum
Thomson
pudding’.
[2]
(ii) Give one reason why scientists needed to develop new ideas about the structure of the
atom over time.
...........................................................................................................................................
...................................................................................................................................... [1]
(b) Scientists now know that the atom contains electrons, protons and neutrons.
(i) Complete the table by giving the charge of each of these particles.
Particle Charge
Electron
...................
Proton
...................
Neutron
...................
[1]
(ii) Electrons are arranged in shells around the outside of the atom.
Give the location of the other particles in the atom.
...................................................................................................................................... [1]
© OCR 2021
