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Week 2 Atomic Structure & Periodic Table 

Task 1 

In class mark
  1. Process Test
  2. Check Homework 5.1
  3. Complete Week 1 Task 3 - Analyse Periodic Trends of elements graphs
  4. Make observations of Rusting Experiment

Task 2 Introduction to the Atom

Go to Khan Academy http://www.khanacademy.org/science/chemistry/introduction-to-the-atom and watch the two videos on the page.
  1. Elements and Atoms: How elements relate to atoms. The basics of how protons, electrons and neutrons make up an atom.
  2. Introduction to the atom: The atom, proton, neutron and electron

Remember to write notes and questions as explained in "Expectations"

Task 3 The Periodic Table

Go to Khan Academy http://www.khanacademy.org/science/chemistry/periodic-table-trends-bonding and watch the following videos on the page.
  1. Groups of the Periodic Table: Properties of alkali, alkaline earth and transition metals. Halogens and noble gases.
  2. Valence Electrons: Looking at valence electrons to figure out reactivity.
  3. Ionic, Covalent, and Metallic Bonds: Introduction to ionic, covalent, polar covalent and metallic bonds.
Remember to write notes and questions as explained in "Expectations"

Task 4 Class exercise on electron arrangement in atoms of the first twenty elements of the periodic table

Fold your period table so that it looks like this;
Picture
Electron arrangement within atoms
http://freezeray.com/flashFiles/atomicStructure.htm
On your blank periodic table template
  1. Add atomic number in top left corner  Add symbol in top right hand corner
  2. Show nucleus with number of protons
  3. Show electron energy shell with electrons
  4. First period may only contain one energy shell with a maximum of 2 electrons
  5. Second period may contain two energy shells with a maximum of 8 electrons
  6. Follow this pattern 

BORED yet?
Instead of drawing the arrangement of electrons within each atom;
  1. Write the numbers of electrons in each shell. Put a comma to signify a different energy shell.
  •     Eg   2, 3
  •          2, 8, 3
  1. Divide the job between the team members. Do this in the first twenty squares for elements with atomic number to 20.

Picture
Analysing your Electron arrangement and electron configuration chart
  1. On your large Periodic table label the the Periods 1 to 4. Use the diagram to the left to explain what the period numbers mean.
  2. On your large Periodic table label the the Groups 1 to 8. Look at the outer electron shell and explain what the Group numbers mean.



The Element song

http://www.youtube.com/watch?v=SmwlzwGMMwc

Task 5 Practical - Properties of Metals and Non-metals

Aim: To test and compare the appearance, malleability, hardness and electrical conductivity of some metals and non-metals.
Read through the group worksheet.
In your own book;
  • Safety risks and their resolution
  • Draw up a Results table; Observations of physical properties of metals and non-metals.
The class will perform this practical as a caucus race with ten minutes at each of four stations. We will organise how to do this in class.
Leave your station neat and ordered for the next group.
  • Summarise the properties of METALS and NON-METALS  in terms of the physical properties of;
  • appearance
  • malleability
  • hardness
  • electrical conductivity

Task 6 - Formative Test Week 2  Metals, Atoms  and Periodic Table

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