1. Groups of Elements

2. Groups and Periods
Groups (families): the vertical columns of the period table. Elements in the same group share chemical properties. There are 18 groups in the periodic table.
What do the elements in the groups all have in common?

3. Groups and Periods
Periods: One of seven horizontal rows in the periodic table.
What do the elements in the periods all have in common?

4. Which atoms are these? Group 1, Period6 Group 16, Period 4

5. Chemical Families
There are 4 main families of the periodic table. They are:
Alkali Metals
Alkaline Earth Metals
Halogens
Noble Gases

6. Alkali Metals
Properties: Silvery grey, malleable, soft, conduct electricity and heat.
Most reactive metals, react violently with water.
Lithium, Sodium, Potassium, Rubidium, Cesium, Francium

7. Alkali metals

8. Alkaline Earth Metals
Silvery-grey, malleable, slightly harder than alkali metals, conduct electricity and heat.
Reactive, but not as reactive as the alkali metals
Beryllium, Magnesium, Calcium, Strontium, Barium, Radium

9. Alkaline Earth Metals

10. Halogens Non-metals Solid, liquid and gases Brightly coloured
Most reactive non-metals
Fluorine, Chlorine, Bromine, Iodine, Astatine

11. Halogens

12. Noble Gases All Gases All non-metals Not Reactive
Helium, Neon, Argon, Krypton, Xenon, Radon

13. Noble Gases

14. Trends on the Periodic table
Metals become more reactive
Metals become more
Reactive as you move
Down the column
Non-metals become more
Reactive as you move up the
Column.
Non-metals become more reactive

15. Questions
P 195, #3,4
P 199, #4
P204, #3,4, & 12