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5.1.1a Structure of the atom and ions

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Question 64

Inside a vacuum tube, a heated metal filament releases particles through the process of thermionic emission.

What are these emitted particles, and how does increasing the temperature of the filament affect the rate of their emission?

A

Protons, and the rate of emission increases

B

Electrons, and the rate of emission increases

C

Ions, and the rate of emission decreases

D

Electrons, and the rate of emission decreases

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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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