Unit #1Unit #2Unit #3Unit #4Unit #5Unit #6Unit #7Unit #8Unit #9Unit #10
spacerUNIT # 4  
spacerspacerIntroduction
spacerspacerObjectives
spacerspacerReading


spacer4.1 The Periods
spacer4.2 The Groups
spacerGroup IA - Alkali metals
spacerGroup IIA - Alkaline earth metals
spacerGroup VIIA - Halogens
spacerGroup VIIIA - Noble gases
spacer4.3 Metals,
spacerNonmetals,
spacerSemimetals

spacerProperties of Metals
spacerProperties of Nommetals
spacerProperties of Semimetals
spacerSummary
spacer4.4 Metallic
spacerBonding

spacer4.5 Octet
spacerRule

spacer4.6 Ions
spacer
4.7 Covalent
spacerBonding

spacerCovalent Bonding & Groups
spacer
4.8 Atomic
spacerSize

spacer
4.9 Ionic
spacerSize

spacerIonic Size of Metal Ions
spacerIonic Size of Nonmetal Ions
spacerIonic Size for Isoelectronic Series
spacer
4.10 mp/bp
spacerTrends
spacer
4.11 Metallic
spacerTrend


spacer** More
spacerspacerperiodic
spacerTrends
**


spacerspacerProblems
spacer1 | 2 | 3
spacerspacerCrossword
spacerspacerHow well do you
spacerknow your
spacerPeriodic Table?

Unit #4 THE PERIODIC TABLE

4.6 - Ions

Let's recap what we've learned:
  1. In section 3.3.2 we learned that for the Representative elements the element's group number is also the number of valence electrons for those elements in that group.
    • Group IA elements all have 1 valence electron
    • Group IIA elements all have 2 valence electrons
    • Group IIIA elements all have 3 valence electrons
    • Group IVA elements all have 4 valence electrons
    • Group VA elements all have 5 valence electrons
    • Group VIA elements all have 6 valence electrons
    • Group VIIA elements all have 7 valence electrons
    • Group VIIIA elements all have 8 valence electrons
  2. In section 4.4 we learned that metals have a tendency to lose their valence electrons to form cations.
  3. In section 4.5 we learned that when an ion is formed, the number of electrons that is gained or lost is determined by the octet rule.

Click here to review the charge of ions that representative elements tend to form.

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British Columbia Institute of Technology
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