Periodic Table

Periodic Table

1. GROUPS

   • VERTICAL COLUMS
   • VALENCE ELECTRONS BASED ON GP #
   • SIMILAR CHEM PROP
   • SEE TRENDS IN P PROP AS PERIODS GO ON

2. PERIODS

   • HORIZONTAL

3. GP 1

   • ALKALI METALS
     • VERY REACTIVE

4. GP 2

   • ALKALINE METALS

5. GP 7

   • HALOGENS

6. GP 8

   • NOBLE GASES

7. MENDELEEV

   • ORGANIZED OFF OF A WEIGHT
     • THEN ADDED P&C PROPERTIES
       • PREDICITED E NOT THERE

8. MODERN

   • ATOMIC # AND VALENCE E

9. DEFINITON

   • PERIODIC LAW: PATTERNS OF P&C PROP REPEAT PERIODICALLY