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5.1.1a Structure of the atom and ions

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Question 38

In an electron gun, a heated metal filament releases particles into a vacuum.

What is this process called, and what are the particles that are released?

A

Process: Photoelectric effect; Particles: Electrons

B

Process: Thermionic emission; Particles: Electrons

C

Process: Thermionic emission; Particles: Protons

D

Process: Photoelectric effect; Particles: Photons

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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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