Periodicity

1
Periodicity

• Organization of the periodic table.

2
The periodic table

• How is the periodic table put together?
• Groups
• Periods
• Protons
• Electron configuration

3
The periodic table

• What is ionization energy?
• It is the minimum amount of energy needed to
  remove one electron from one mole of the gas
• How will this change as you go across a period?
• How will this change down a group?

4
The periodic table

• What is electronegativity?
• It is how strongly the atom attracts electrons in
  a covalent bond.
• How is this going to change across a period?
• How will this change down a group?

5
The periodic table

• What happens to atomic and ionic radii as
  compared to electronegativity and ionization
  energy?
• The higher the electronegativity, the smaller the
  atom.
• The higher the ionization energy, the smaller the
  ion.

6
The periodic table

• How do the characteristics of a group change? How
  are they alike?
• Alkali-metals
• With water?
• Halogens
• With alkalis
• Alkaline-Earth metals
• Noble gases

7
The periodic table

• How does the position on the periodic table
  affect the bonds formed?
• Ionic bonds
• Covalent bonds
• Metallic bonds

8
Periodicity

• How do the different groups bond?
• Alkali
• Alkaline Earth
• Halogens
• Noble Gas

9
Periodicity

• What happens with the period 3 oxides?
• The properties change from basic to amphoteric to
  acidic.
• Ionic to giant covalent to molecular covalent.
• Oxidation number climbs steadily in oxide form
• Conductivity goes from high to low

10
Periodicity

• What are the trends across period 3?
• Atom size?
• Electronegativity?
• Nuclear charge?
• Ion size?