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The Periodic Table (Electron Configurations (Each family share similar…
The Periodic Table
Electron Configurations
Each family share similar properties
Examples
Group 18 Stable
Group 1 Unstable
Ionization
Amount of energy needed to be removed from electron
L to R Energy increases
T to B Energy decreases
Atomic Radius vs Atomic Number
L to R Element gets smaller
T to B Element gets bigger
Electronegativeity
The ability to attract other electrons
Nonmetals will have a higher electronegativeity than metals
Lothar Meyer
Developed the first periodic table
Mendeleev
Arranged the elements in his periodic table
Henry Mosley
Finds link to periodic table
Dobereiner
Published the classification system
Trends
Important people who worked on the periodic table