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5.1.1a Structure of the atom and ions

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Question 16

A beam of cathode rays is emitted from a heated filament inside a vacuum tube.

What is the identity of the particles that make up these cathode rays, and what is the name of the process by which they are released from the heated filament?

A

protons; thermionic emission

B

electrons; photoelectric effect

C

electrons; thermionic emission

D

neutrons; nuclear emission

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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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