Wednesday, 3 October 2012

Chemistry Fundamentals

Today we're going to be summarizing what we've done so far with Chemistry.  Answer the following in your books:

  1. Explain what the 'groups' of the periodic table are.
  2. What do you notice about the outer shells of all the elements in group 1 (vertical column on the left hand side) of the periodic table?
  3. For question 2, what charge would all the atoms of this group have when they become ions?
  4. Complete this activity, and briefly describe what happens to an atom to create an ionic bond.
  5. Draw a covalent bond covalent bond between 2 chlorine atoms.
  6. Complete the activitiy here.  How are elements in the periodic table organised?
  7. The diagram below shows the charge on an ion of each element. If group 1 is +1, have they gained or lost an electron?                                                         v
  8. Try these two tests (here and here), writing down how  many protons, neutrons and electrons an atom of Al has.      
  9. Using the periodic table below, give an element with a +1 ionic charge and one with a -2 ionic charge.                                                                  
  10. Complete this activity. Which 2 groups could the red atom belong to?
  11. Extension - In what ratio would Mg and Cl join to from a compound with a balanced charge? What type of bonds would form? Explain your answer.
  12. Once you're finished, try this activity.

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