OCR 2024 GCSE Chemistry B (Twenty First Century Science) J258/02 Depth in Chemistry (Foundation Tier) With Marking Scheme Merged
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Course
OCR 2024 GCSE Chemistry B
Institution
OCR 2024 GCSE Chemistry B
GCSE (9–1) Chemistry B (Twenty First Century Science)
J258/02 Depth in Chemistry (Foundation Tier)
Time allowed: 1 hour 45 minutes
You must have: F • a ruler (cm/mm)
• the Data Sheet for GCSE (9-1) Chemistry B
(inside this document)
You can use:
• a scientific or graphic...
OCR 2024
GCSE Chemistry B (Twenty First Century Science)
J258/02 Depth in Chemistry (Foundation Tier)
With Marking Scheme Merged
, Oxford Cambridge and RSA
Tuesday 11 June 2024 – Morning
GCSE (9–1) Chemistry B (Twenty First Century Science)
J258/02 Depth in Chemistry (Foundation Tier)
Time allowed: 1 hour 45 minutes
You must have:
• a ruler (cm/mm)
• the Data Sheet for GCSE (9-1) Chemistry B
(inside this document)
You can use:
F
• a scientific or graphical calculator • an HB
pencil
* J 2 5 8 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 page 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 90.
• 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 28 pages.
ADVICE
• Read each question carefully before you start your answer.
, 2
1 A student makes a model of an atom.
(a) The student uses small, coloured beads to represent the protons and neutrons in the nucleus of
the model. This is shown in the diagram below.
Complete the diagram to show the correct arrangement of electrons in the
atom. Use X to represent each electron.
Key
Proton
Neutron
Nucleus contains
5 protons and
6 neutrons
[2]
(b) Complete the sentences.
Use words from the list.
ions negative neutral neutrons positive protons
Atoms contain a nucleus with a .................................................... charge.
The atomic number gives the number of .................................................... in an atom.
[2]
, 3
(c) The bead the student uses to represent a proton has a diameter of 1
cm. Bead
1 cm
5
The student finds out that an atom is 1 × 10 times larger than a proton.
If they make their model to scale, what is the diameter of the model atom?
Put a ring around the correct option.
100 cm 1000 cm 10 000 cm 100 000 cm
[1]
(d) The student makes models of some other atoms.
The particles in each atom are shown in the table.
Number of Number of Electron
Atom
protons neutrons arrangement
A 3 4 2.1
B 8 8 2.6
C 12 12 2.8.2
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