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5.1 The nuclear model of the atom

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Question 193

Which statement correctly describes isotopes of the same chemical element?

A

They have the same number of protons but different numbers of neutrons.

B

They have the same number of neutrons but different numbers of protons.

C

They have the same number of nucleons but different numbers of protons.

D

They have different chemical properties because they have different numbers of electrons.

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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