Chemical Names and Formulas
Periodic Table:
Dimitri Mendeleev –
Henry Mosely –
Periodic Chart – (handout of chart skeleton)
Families (column)
Period (row) –
Group A: (IA – VIIIA) – called the “
Because they
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Metals
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GROUP B:
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Inner Transition Metals
Lanthanide series –
Actinide series –
NONMETALS –
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METALLOIDS –
Boron Aluminum –
FORMATION OF COMPOUNDS
Compound –
Law of Definite Proportions –
Two types of compounds – 1.
2.
1. Molecular Compounds
Molecule –
Molecular Formula –
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 diatomic molecules –
**MEMORIZE** HONClBrIF
2. Ionic Compounds –
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Ion –
Cations –
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Anions 
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 ionic charges of Group A metals (see periodic chart)
 ionic charges of Group B metals (transitional metals) – see periodic chart
“ic” above “ous” –
or Roman Numerals Examples
Polyatomic ion –
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 add sulfite and phophite to the back of your periodic chart
 hypo  per –
Formula Unit –
Chemical Formula –
What is the difference between an ionic compound and a molecular compound?
Why aren’t ionic compounds molecules?
What is the smallest ratio of an ionic compound called?
Name the 7 diatomic elements and then write their formulas correctly:
1.
2.
3.
4.
5.
6.
7.
Metals form ___ ions called ______________.
Nonmetals form ___ions called ____________.
What group of metals (and name) have more than 1 possible charge?
What is a polyatomic ion?