Periodicity - PowerPoint PPT Presentation

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Periodicity

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Periodicity Organization of the periodic table. The periodic table How is the periodic table put together? Groups Periods Protons Electron configuration The periodic ... – PowerPoint PPT presentation

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Title: 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?
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