1. The Periodic Table How the periodic table is put together

2. What is the Periodic Table? It is an organizational system for elements.

3. You've got Your Periods... Each of the rows is considered to be a different period Hence, the periodic table quoted from http://www.chem4kids.com/files/elem_pertable.html http://www.chem4kids.com/files/elem_pertable.html

4. And you got your groups… The periodic table has a special name for its columns, they are called groups. quoted from http://www.chem4kids.com/files/elem_pertable.ht ml http://www.chem4kids.com/files/elem_pertable.ht ml

5. Groups = Columns = Families The elements in a group (family) have the same number of electrons in their outer orbital. There are some exceptions to the order when you look at the transition elements.transition elements

6. very reactive metals that do not occur freely in nature malleable, ductile, good conductors of heat and electricity. can explode if they are exposed to water ALKALI METALS From www.science-class.net

7. metals very reactive not found free in nature ALKLINE EARTH METALS From www.science-class.net

8. ductile and malleable, and conduct electricity and heat iron, cobalt, and nickel, are the only elements known to produce a magnetic field. TRANSITION METALS From www.science-class.net

9. many are man-made RARE EARTH ELEMENTS From www.science-class.net

10. are ductile and malleable are solid, have a high density, OTHER METALS From www.science-class.net

11. have properties of both metals and non- metals some of the metalloids are semi- conductors. This means that they can carry an electrical charge under special conditions. This property makes metalloids useful in computers and calculators METALLOIDS From www.science-class.net

12. not able to conduct electricity or heat very well very brittle Do not reflect light. NON-METALS From www.science-class.net

13. "halogen" means "salt-former" and compounds containing halogens are called "salts" exist in all three states of matter HALOGENS From www.science-class.net

14. do not form compounds easily Happy/Inert Elements (Full outer shells)Happy/Inert Elements (Full outer shells) NOBLE GASES From www.science-class.net