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Chemistry Grade 9 Unit

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  • Sort the following in metal, nonmetal and metalloid group. Silicon, chlorine, selenium, managanese, uranium.
    Metalloid - silicon. Non-metal - Chlorine, selenium. Metal - Manganese, uranium
  • What elements exist in this chemical formula. NaHCO3.
    Sodium, Hydrogen, Carbon, Oxygen.
  • What is the group and period for Bismuth.
    Group - 15, period - 6.
  • What is the group and period for Germanium.
    Group - 14, period - 4
  • How many atoms are in the following: Fe2(SO4)2
    12 atoms.
  • Draw a Bohr Diagram for phosphorus
  • Draw a Bohr Diagram for sulfur
  • Draw a Bohr Diagram for carbon
  • How many atoms of each element are in the following. 4Fe(OH)2
    Fe - 4, O - 8, H - 8
  • Draw a Bohr Diagram for Fluorine
  • Draw a Bohr diagram for Argon
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