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1.2 Atomic structure

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Question 7
H

Here are four statements about how the model of the atom developed.

Statement 1: Dalton's model was changed after the discovery of the electron showed that atoms contain smaller particles.

Statement 2: The nuclear model replaced the plum pudding model because it explained why some alpha particles were deflected through large angles.

Statement 3: The plum pudding model was rejected because it could not explain why atoms have no overall charge.

Statement 4: Neutrons were proposed to explain why the mass of most atoms is greater than the mass of their protons and electrons.

Which statements are correct?

[1]
A

1 and 2 only

B

1, 2 and 3 only

C

1, 2 and 4 only

D

1, 2, 3 and 4

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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