• Code: C.4.10.AS.8
  • Spefication Reference:\\4.1.16\
  • Keywords: Protons, neutrons, electrons, nucleus, energy shells
  • Objectives: To identify the three sub-atomic particles. To state the relative mass and charge of each sub-atomic particle. To calculate the number of each sub atomic particle from an element's symbol. To write electronic configurations for elements.
  • Competency: Recall the charge and mass of each sub-atomic particle
  • Proficiency: Calculate the numbers of protons, neutrons and electrons in an atom or ion, given its atomic number and mass number for the first 20 elements
  • Mastery: Represent the electronic structures of the first twenty elements of the periodic table in both forms.


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