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5.1 The nuclear model of the atom

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Question 26

The symbol represents a nucleus of cobalt.

2759Co {}^{59}_{27}\text{Co} 2759​Co

Which option correctly gives the numbers of protons and neutrons in this nucleus?

A

27 protons, 32 neutrons

B

27 protons, 59 neutrons

C

32 protons, 27 neutrons

D

32 protons, 59 neutrons

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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