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Physics · Oct / Nov 2020 · Paper 12 · Question 40

5054The nucleus

Which row shows the atomic structure of a neutral atom with a nucleon number of 9?

  1. A4 neutrons, 5 protons, 4 electrons
  2. B4 neutrons, 5 protons, 5 electrons
  3. C5 neutrons, 4 protons, 5 electrons
  4. D5 neutrons, 5 protons, 4 electrons

As printed in the paper

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Correct answer: B. 4 neutrons, 5 protons, 5 electrons

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