1. Atomic Structure
Using the Periodic Table to determine the Atomic Structure of the Elements

2. Periodic Table An Important Tool in Chemistry
For each element
Classification as metal or non-metal
Structure of the atom
Properties
Physical properties: size, melting point, conducting electricity
Chemical properties: how easily it reacts to form new substances

3. Important Elements to Memorize H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Mn Fe Co Ni Cu Zn Br Kr Ag Sn I Xe Au Hg Pb Rn U 3

5. Periodic Table An Important Tool in Chemistry16 S
32.06 S 16
32.06

6. Organization of the Periodic Table
Columns – Groups
All the elements have similar chemical and physical properties
All will chemically react in a similar way
Names of groups
Rows – Periods
Elements have same number of energy levels

7. Bohr Model Diagrams Rules
Identify the number of electrons using the Atomic Number
Place dots as electrons starting from the center
Maximum of electrons
1st =2, 2nd = 8, 3rd =8