The nucleus — Core Learning Objectives

Note
  • Describe the composition of the nucleus in terms of protons and neutrons
  • State the relative charges of protons, neutrons and electrons as +1, 0 and -1 respectively
  • Define the terms proton number (atomic number) Z and nucleon number (mass number) A and be able to calculate the number of neutrons in a nucleus
  • Use the nuclide notation ^A_Z X
  • Explain what is meant by an isotope and state that an element may have more than one isotope
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