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5.1.1a Structure of the atom and ions

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Question 49
a.

An atom of oxygen contains protons, neutrons and electrons. Indicate where each particle is found in the atom by specifying whether they are "in the nucleus" or "orbiting the nucleus":

  • electron
  • neutron
  • proton
[2]
b.

An atom of oxygen contains 8 protons, 10 neutrons and 8 electrons.

(i) State the proton number of this oxygen.

[1]
c.

An atom of oxygen contains 8 protons, 10 neutrons and 8 electrons.

(ii) State the nucleon number of this oxygen.

[1]
d.

Oxygen has many different isotopes.

(i) Explain the meaning of the term isotope.

[2]
e.

Oxygen has many different isotopes.

(ii) The nuclide notation for the oxygen in (b) is 0818O^{18}_{\phantom{0}8}\text{O}0818​O. Suggest the nuclide notation for another possible isotope of oxygen.

[1]
Markscheme

5.1.1a Structure of the atom and ions Questions

  1. IGCSE
  2. /Physics
  3. /5.1.1a Structure of the atom and ions

114 exam-style questions on CIE IGCSE Physics 5.1.1a Structure of the atom and ions. Each one has a worked solution and a mark scheme showing where the marks go.

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