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5.1 The nuclear model of the atom

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Question 223

Which statement is correct for a neutral atom of any isotope?

A

The number of neutrons always equals the number of protons.

B

The nucleus contains positive protons and negative electrons.

C

The total charge of the electron cloud is equal in magnitude but opposite in sign to the charge of the nucleus.

D

The volume of the nucleus is approximately half the volume of the entire atom.

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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