Structure of the Atom & Periodic Table

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Topic Objectives

By the end of this topic, the learner should be able to:

  • Name and write the chemical symbols of the first twenty elements of the periodic table;
  • Describe the structure of the atom and write the electron arrangement of the first twenty elements of the periodic table;
  • Explain the electron arrangement of the atom in terms of energy levels;
  • Define atomic number, mass number, isotopes and relative atomic mass;
  • Calculate the relative atomic masses from isotopic composition;
  • Explain the position of an element in the periodic table in terms of the electron arrangement;
  • Define valency and oxidation number of an element;
  • Predict the type of ion formed from a given electron arrangement of an atom;
  • Predict the valencies and oxidation numbers from position of elements in the periodic table;
  • Derive the formulae of some simple compounds from valencies of elements and radicals;
  • Write simple balanced chemical equations. 
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Unit Includes

  • 7 Lessons
  • 1 Quiz
  • Unit Certificate
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