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5.1.1a Structure of the atom and ions

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Question 52

A nuclide of potassium is represented by 1940K^{40}_{19}\text{K}1940​K. Which row gives the number and location of the electrons in an atom of 1940K^{40}_{19}\text{K}1940​K?

A

19 electrons, in the nucleus

B

19 electrons, surrounding the nucleus

C

21 electrons, in the nucleus

D

21 electrons, surrounding the nucleus

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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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