1. Periodic Table of the Elements

2. u These are called the inner transition elements and they belong here

3. 1 2 1314151617 18 3456789101112 Vertical columns are called groups or families. Elements are placed in columns by similar properties.

4. u Horizontal rows are called periods 12345671234567 u There are 7 periods

5. 1A 2A 3A4A5A6A7A 8A 3B4B5B6B7B8B 1B2B 1 2 1314151617 18 3456789101112

6. Metals l Luster – shiny. l Ductile – drawn into wires. l Malleable – hammered into sheets. l Conductors of heat and electricity.

7. Non-metals l Dull l Brittle l Nonconductors - insulators

8. Metalloids or Semimetals l Properties of both l Semiconductors

9. u Group 1 are the alkali metals u They have 1 valence electron in the outer orbital or energy shell 1

10. u Group 2 are the alkaline earth metals u They have 2 valence electrons 2

11. Transition metals l Groups 3-12 l their properties do not fit in with those of any other family.

12. u Group 13 is called the Boron family u They have 3 valence electrons 13

13. u Group 14 is called the Carbon Family u They have 4 valence electrons 14

14. u Group 15 is called the Nitrogen Family u They have 5 valence electrons 15

15. u Group 16 is called the Oxygen Family u They 6 valence electrons 16

16. u Group 17 is called the Halogens u They have 7 valence electrons 17

17. u Group 18 are the Noble Gases u They have 8 valence electrons