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5.1 The nuclear model of the atom

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Question 199

Cobalt-60 is commonly used in industrial radiography and radiation therapy. The nucleus of cobalt-60 can be represented as

2760Co ^{60}_{27}\text{Co} 2760​Co
a.

State the two types of particle present in a nucleus of cobalt-60, and the number of each particle present.

[3]
b.

Cobalt has more than one isotope. Explain what is meant by the term isotope.

[2]
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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