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1.2 Atomic structure

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Question 3
H

Before the gold foil experiment, scientists used Thomson's "plum pudding" model of the atom.

Here are three observations from the gold foil experiment.

Statement 1: Most alpha particles passed straight through the gold foil.

Statement 2: A small number of alpha particles were deflected through large angles.

Statement 3: A very small number of alpha particles bounced back towards the source.

Which observations could not be explained by the plum pudding model?

[1]
A

1 only

B

1 and 2 only

C

2 and 3 only

D

1, 2 and 3

Markscheme

1.2 Atomic structure Questions

  1. GCSE
  2. /Chemistry
  3. /1.2 Atomic structure

51 exam-style questions on OCR GCSE Chemistry 1.2 Atomic structure, covering 1.2.1 Development of the atomic model, 1.2.2 The nuclear model and the size of atoms, and 1.2.3 Subatomic particles in atoms and ions. Each one has a worked solution and a mark scheme showing where the marks go.

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