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5.1 The nuclear model of the atom

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Question 169

In the nuclear model of an atom, a central nucleus is orbited by much smaller particles called electrons.

What is the sign of the electric charge of the nucleus and of the orbiting electrons?

A

Nucleus: positive; Electrons: negative

B

Nucleus: positive; Electrons: positive

C

Nucleus: negative; Electrons: positive

D

Nucleus: neutral; Electrons: negative

Markscheme

5.1 The nuclear model of the atom Questions

  1. IGCSE
  2. /Physics
  3. /5.1 The nuclear model of the atom

284 exam-style questions on CIE IGCSE Physics 5.1 The nuclear model of the atom, covering 5.1.1a Structure of the atom and ions, 5.1.1b Alpha-particle scattering, 5.1.2a Composition of the nucleus and isotopes, 5.1.2b Proton number, nucleon number and nuclide notation, and 5.1.2c Nuclear fission and nuclear fusion. Each one has a worked solution and a mark scheme showing where the marks go.

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