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OCR GCSE Combined Science

Topic questions Atomic structure and the periodic table The development of the model of the atom

The development of the model of the atom

5 questions · 19 marks · about 20 minutes

The development of the model of the atom questions

TopicThe development of the model of the atom

OCR J250 The development of the model of the atom 5 questions

Chemistry Paper 3 June 2024 Foundation tier, Question 11 8 marks

Elements in the Periodic Table are made from atoms.

(a)

Atoms are made from three particles called protons, neutrons and electrons.

The diagram shows an atom.

(a)(i)

Label the names of the three particles on the diagram.

Figure for question 11
[2]
Reveal mark scheme Mark scheme for question 11(a)(i)
(a)(ii)

Complete the sentence about the atom.

Question 11, shown as an image

The particle with the lowest relative mass is the proton / neutron / electron.

[1]
Reveal mark scheme Mark scheme for question 11(a)(ii)
(a)(iii)

The first of these three particles to be discovered was by J.J. Thomson.

Complete the sentence about the particles.

Question 11, shown as an image

The particle that was discovered first was the proton / neutron / electron.

[1]
Reveal mark scheme Mark scheme for question 11(a)(iii)
(b)

Write the symbol of the element made from atoms with nine protons.

Use the Periodic Table on the Data Sheet.

[1]
Reveal mark scheme Mark scheme for question 11(b)
(c)

The table shows part of Mendeleev’s Periodic Table published in 1871.

H
LiBeBCNOF
NaMgAlSiPSCl
K CuCa ZnTiV AsCr SeMn BrFe Co Ni
Rb AgSr CdY InZr SnNb SbMo TeIRu Rh Pd
(c)(i)

Which property did Mendeleev use to arrange the elements in his Periodic Table?

Tick (✓) one box.

Question 11, shown as an image
[1]
Reveal mark scheme Mark scheme for question 11(c)(i)
(c)(ii)

Give one reason why Mendeleev left gaps in his Periodic Table.

[1]
Reveal mark scheme Mark scheme for question 11(c)(ii)
(c)(iii)

Elements from which Group(s) are present in both Mendeleev’s Periodic Table and the modern Periodic Table?

Use the Periodic Table on the Data Sheet.

Tick (✓) one, two or three boxes.

Question 11, shown as an image
[1]
Reveal mark scheme Mark scheme for question 11(c)(iii)

Chemistry Paper 9 June 2024 Higher tier, Question 16 5 marks

The diagram shows the model of the atom developed by Rutherford.

Figure for question 16
(a)

The model developed by Rutherford was based on the results of an experiment performed whilst working with Geiger and Marsden.

They fired positively charged alpha particles at very thin gold foil.

State two observations made in the experiment and the conclusion Rutherford reached.

[3]
Reveal mark scheme Mark scheme for question 16(a)
(b)

Describe how Bohr improved Rutherford’s model of the atom.

[1]
Reveal mark scheme Mark scheme for question 16(b)
(c)

What is the typical atomic radius size of an atom in metres?

Give your answer in standard form.

[1]
Reveal mark scheme Mark scheme for question 16(c)

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