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Physics · Oct / Nov 2024 · Paper 12 · Question 36

5054The nucleus

Which statement about the nuclide notation ${}^{R}_{Z}\text{X}$ is correct?

  1. AR is the nucleon number which is different for different isotopes of X.
  2. BR is the proton number which is the same for different isotopes of X.
  3. CZ is the nucleon number which is the same for different isotopes of X.
  4. DZ is the proton number which is different for different isotopes of X.

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Correct answer: A. R is the nucleon number which is different for different isotopes of X.

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