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5.1 The nuclear model of the atom

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Question 49

Two different nuclides are isotopes of the same element. Which of the following quantities must be the same for both nuclides?

A

The number of neutrons in their nuclei.

B

The total number of nucleons (mass number) of their nuclei.

C

The atomic number (proton number) of their nuclei.

D

The nuclear mass of each nuclide.

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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