The Periodic Table of Elements



Learning Intentions

  1. To learn how the Periodic Table of Elements organizes the elements.
  2. To learn how to identify properties of elements based on their position on the Period Table.

Videos

Physical Properties of Metals and Nonmetals - Part 1 | Don't Memorise (2:58)


Physical Properties of Metals and Nonmetals - Part 2 | Don't Memorise (5:38)


Demonstrations

  1. The teacher will demonstrate that metals conduct electricity, and are malleable.
  2. The teacher will demonstrate that a carbon rod conducts electricity, but is very brittle.
  3. The teacher will demonstrate that gallium melts when held in your hand.


Simulation: The Ductility and Malleability of Metal

Notice how the protons (positive charges) stay in a crystal structure, while the electrons move freely through the material.


Questions

  1. Who developed the Periodic Table of Elements?
  2. What is the term for a horizontal row in the Periodic Table of Elements?
  3. What is the term for a vertical column in the Periodic Table of Elements?
  4. The elements of the periodic table are generally divided into two categories. Write them into the two blank spaces below, then fill in the rest of the table.


    		 ______________________
    		 ______________________
    State of matter at room temperature
    Shiny?
    Malleable?
    Ductile?
    Conducts heat?
    Conducts electricity?

  5. Every chemical symbol is made up of ______________________ letters.
  6. The first letter in every symbol is always ______________________.
  7. The ______________________ indicates the number of protons in the nucleus of an element.
  8. The ______________________ ______________________ is approximately equal to the number of protons plus the number of neutrons.
  9. The ______________________ indicates the electric charge of the atom when it gains or loses electrons to become an ion.
  10. What is an isotope?
  11. Fill in the following table. You can use ptable.com to help.


    		 Element name
    		 Chemical Symbol
    		 Atomic Number
    		 Average Atomic Mass
    1 Oxygen
    2
    		 Au
    3
    		 22
    4
    		9.0
    5
    		 Helium
    6
    		 H
    7
    		 3
    8
    		63.5
    9
    		 Silicon
    10 Fe
    11 7
    12

    		27.0
    13 Carbon