CHEMISTRY  SSS2  Second Term



Performance objectives

Students should be able to:

  1. Identify the isotopes of hydrogen and draw their electronic configuration.
  2. Explain the unique position of hydrogen in the periodic table.
  3. Explain the laboratory preparation of hydrogen.
  4. List two physical and chemical properties of hydrogen.
  5. List three uses of hydrogen.


Hydrogen and its isotopes

Hydrogen (H), a colorless, odorless, tasteless, flammable gaseous substance that is the simplest member of the family of chemical elements. The hydrogen atom has a nucleus consisting of a proton bearing one unit of positive electrical charge; an electron, bearing one unit of negative electrical charge, is also associated with this nucleus. Under ordinary conditions, hydrogen gas is a loose aggregation of hydrogen molecules, each consisting of.... View More

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