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1.1 The particle model

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Question 20
H

The radius of an atom is about 1 × 10-10 m and the radius of its nucleus is about 1 × 10-15 m.

Assume that the atom and the nucleus are both spheres.

Approximately what fraction of the volume of the atom is taken up by the nucleus?

[1]
A

1×10−51 \times 10^{-5}1×10−5

B

1×10−101 \times 10^{-10}1×10−10

C

1×10−151 \times 10^{-15}1×10−15

D

1×10−251 \times 10^{-25}1×10−25

Markscheme

1.1 The particle model Questions

  1. GCSE
  2. /Physics
  3. /1.1 The particle model

44 exam-style questions on OCR GCSE Physics 1.1 The particle model, covering 1.1.1 Development of the atomic model, 1.1.2 Structure of the atom, 1.1.3 The size of atoms and small molecules, 1.1.4 Density, 1.1.5 Density and the states of matter, and 1.1.6 Density, mass and volume. Each one has a worked solution and a mark scheme showing where the marks go.

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