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The periodic table Chapter 6 (trends (Electron configureation (The number…
The periodic table
Chapter 6
trends
Electron configureation
Each Family uses similar properties
The number of electrons in the outer most orbital dictate properties
Examples:
Group 18 - filled and
Group 1 - 1e-/unstable
Atomic Radius vs. Atomic Number
Pt. T->B Element gets bigger
Example:
Fr - Largest
Hydrogen Smallest
Pt. L->R Element
Ionization energy
Def:
The amount of energy needed to remove and electron
Trend:
T->B Energy need decreases
L->R Energy needed increases
Electronegativity
Def:
The ability to attract other electrons
Trend:
The ability to
Families on the periodic table
metals
Alkali earth metals
Alkali Metals
Actinoids
Post Transition metals
lanthanoids
Transition metals
Metalloids
Important people who worked on the PT
Mendeleev
Dobeveher
Lothar Meyer
Henry Mosley
Periodic law
Trends:
Example:
Def: