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1.Name the following compounds a. KBrb. Na3(PO5)
c. Al(NO2)3
2. Give the Chemical Formula for the following compoundsa. Calcium Oxideb. Lithium Hydroxidec. Magnesium Manganate
BELL RINGER
POLYVALENT METALS – TRANSITION METALS
Unit 5: Chapter 6.3a
TRANSITION METALS
POLYVALENT METALS
• Many but not all transition metals have “multiple personalities”– # of valence electrons varies– they can form more than one ion (more
than one charge).• Also known as valence # or oxidation
#– Polyvalent
• Roman Numerals are used to signify the charge
POLYVALENT TRANSITION METALS
• Metals with more than one possible charge:• Specific charge is indicated in
parenthesis
POLYVALENT METALS & BONDING
• Fe(II) = – Iron (II) + oxygen =
POLYVALENT METALS & BONDING
• Fe(II) = Fe2+
– Iron (II) + oxygen =
POLYVALENT METALS & BONDING
• Fe(II) = Fe2+
– Iron (II) + oxygen =• Fe2+ & O2-
POLYVALENT METALS & BONDING
• Fe(II) = Fe2+
– Iron (II) + oxygen = • Fe2+ & O2- Fe2O2 FeO
POLYVALENT METALS & BONDING
• Fe(II) = Fe2+
– Iron (II) + oxygen = Iron (II) Oxide• Fe2+ & O2- Fe2O2 FeO
POLYVALENT METALS & BONDING
• Fe(II) = Fe2+
– Iron (II) + oxygen = Iron (II) Oxide• Fe2+ & O2- Fe2O2 FeO
• Fe(III) = Fe3+
– Iron (III) + oxygen =
POLYVALENT METALS & BONDING
• Fe(II) = Fe2+
– Iron (II) + oxygen = Iron (II) Oxide• Fe2+ & O2- Fe2O2 FeO
• Fe(III) = Fe3+
– Iron (III) + oxygen = Iron (III) Oxide
POLYVALENT METALS & BONDING
• Fe(II) = Fe2+
– Iron (II) + oxygen = Iron (II) Oxide• Fe2+ & O2- Fe2O2 FeO
• Fe(III) = Fe3+
– Iron (III) + oxygen = Iron (III) Oxide• Fe3+ & O2-
POLYVALENT METALS & BONDING
• Fe(II) = Fe2+
– Iron (II) + oxygen = Iron (II) Oxide• Fe2+ & O2- Fe2O2 FeO
• Fe(III) = Fe3+
– Iron (III) + oxygen = Iron (III) Oxide• Fe3+ & O2- Fe2O3
POLYVALENT METALS & BONDING
• Fe(II) = Fe2+
– Iron (II) + oxygen = Iron (II) Oxide• Fe2+ & O2- Fe2O2 FeO
• Fe(III) = Fe3+
– Iron (III) + oxygen = Iron (III) Oxide• Fe3+ & O2- Fe2O3
• Name these compounds just like other binary ionic compounds but include the metal’s oxidation # (charge) in parentheses
PRACTICE - POLYVALENT COMPOUNDS
• Names to Formulas– Silver (III) Nitride– Vanadium (III) Chloride– Lead (IV) Oxide– Silver (II) Nitride– Vanadium (II) Chloride– Lead (II) Oxide
PRACTICE - POLYVALENT COMPOUNDS
• Formulas to Names– Have to determine the oxidation
#/Charge of your metal.• Reverse the criss cross (doesn’t always work)
– Fe2O3 Fe3+ and O2-
• Make sure the compound is neutral (positive & negative charges cancel out)
–Fe3+ 2 x 3+ = 6+–O2- 3 x 2- = 6-
PRACTICE - POLYVALENT COMPOUNDS
• Formulas to Names– Have to determine the oxidation
#/Charge of your metal.• Reverse the criss cross (doesn’t always work)
– Fe2O3 Fe3+ and O2-
• Make sure the compound is neutral
• SnO3
PRACTICE - POLYVALENT COMPOUNDS
• Formulas to Names– Have to determine the oxidation
#/Charge of your metal.• Reverse the criss cross (doesn’t always work)
– Fe2O3 Fe3+ and O2-
• Make sure the compound is neutral
• SnO3 Sn3+ and O1-
PRACTICE - POLYVALENT COMPOUNDS
• Formulas to Names– Have to determine the oxidation
#/Charge of your metal.• Reverse the criss cross (doesn’t always work)
– Fe2O3 Fe3+ and O2-
• Make sure the compound is neutral • SnO3 Sn3+ and O1-
–O2- 3 x 2- = 6-–Sn? 1 x ? = 6+
Common Ions Hydrogen H+1 Aluminum Al+3 Nitrate (NO3)
-1
Calcium Ca+2 Iron (III) Fe+3 Sulfate (SO4)-2
Zinc Zn+2 Chlorine Cl-1 Carbonate (CO3)-2
Copper (II) Cu+2 Hydroxide OH-1 Phosphate (PO4)-3
Silver Ag+1 Phosphide P-3 Acetate (C2H3O2)-1
Which of these are: •Metals? •Nonmetals?
•Polyatomic ions?•Transition metals?
Common Ions Hydrogen H+1 Aluminum Al+3 Nitrate (NO3)
-1
Calcium Ca+2 Iron (III) Fe+3 Sulfate (SO4)-2
Zinc Zn+2 Chlorine Cl-1 Carbonate (CO3)-2
Copper (II) Cu+2 Hydroxide OH-1 Phosphate (PO4)-3
Silver Ag+1 Phosphide P-3 Acetate (C2H3O2)-1
Which of these are: •Metals? •Nonmetals?
•Polyatomic ions?•Transition metals?
Common Ions Hydrogen H+1 Aluminum Al+3 Nitrate (NO3)
-1
Calcium Ca+2 Iron (III) Fe+3 Sulfate (SO4)-2
Zinc Zn+2 Chlorine Cl-1 Carbonate (CO3)-2
Copper (II) Cu+2 Hydroxide OH-1 Phosphate (PO4)-3
Silver Ag+1 Phosphide P-3 Acetate (C2H3O2)-1
Which of these are: •Metals? •Nonmetals?
•Polyatomic ions?•Transition metals?
Common Ions Hydrogen H+1 Aluminum Al+3 Nitrate (NO3)
-1
Calcium Ca+2 Iron (III) Fe+3 Sulfate (SO4)-2
Zinc Zn+2 Chlorine Cl-1 Carbonate (CO3)-2
Copper (II) Cu+2 Hydroxide OH-1 Phosphate (PO4)-3
Silver Ag+1 Phosphide P-3 Acetate (C2H3O2)-1
Which of these are: •Metals? •Nonmetals?
•Polyatomic ions?•Transition metals?
Common Ions Hydrogen H+1 Aluminum Al+3 Nitrate (NO3)
-1
Calcium Ca+2 Iron (III) Fe+3 Sulfate (SO4)-2
Zinc Zn+2 Chlorine Cl-1 Carbonate (CO3)-2
Copper (II) Cu+2 Hydroxide OH-1 Phosphate (PO4)-3
Silver Ag+1 Phosphide P-3 Acetate (C2H3O2)-1
Which of these are: •Metals? •Nonmetals?
•Polyatomic ions?•Transition metals?
Common Ions Hydrogen H+1 Aluminum Al+3 Nitrate (NO3)
-1
Calcium Ca+2 Iron (III) Fe+3 Sulfate (SO4)-2
Zinc Zn+2 Chlorine Cl-1 Carbonate (CO3)-2
Copper (II) Cu+2 Hydroxide OH-1 Phosphate (PO4)-3
Silver Ag+1 Phosphide P-3 Acetate (C2H3O2)-1
Which of these are: •Metals? •Nonmetals?
•Polyatomic ions?•Transition metals?
Common Ions Hydrogen H+1 Aluminum Al+3 Nitrate (NO3)
-1
Calcium Ca+2 Iron (III) Fe+3 Sulfate (SO4)-2
Zinc Zn+2 Chlorine Cl-1 Carbonate (CO3)-2
Copper (II) Cu+2 Hydroxide OH-1 Phosphate (PO4)-3
Silver Ag+1 Phosphide P-3 Acetate (C2H3O2)-1
Which of these are: •Metals? •Nonmetals?
•Polyatomic ions?•Transition metals?
Common Ions Hydrogen H+1 Aluminum Al+3 Nitrate (NO3)
-1
Calcium Ca+2 Iron (III) Fe+3 Sulfate (SO4)-2
Zinc Zn+2 Chlorine Cl-1 Carbonate (CO3)-2
Copper (II) Cu+2 Hydroxide OH-1 Phosphate (PO4)-3
Silver Ag+1 Phosphide P-3 Acetate (C2H3O2)-1
Which of these are: •Metals? •Nonmetals?
•Polyatomic ions?•Transition metals?
Common Ions Hydrogen H+1 Aluminum Al+3 Nitrate (NO3)
-1
Calcium Ca+2 Iron (III) Fe+3 Sulfate (SO4)-2
Zinc Zn+2 Chlorine Cl-1 Carbonate (CO3)-2
Copper (II) Cu+2 Hydroxide OH-1 Phosphate (PO4)-3
Silver Ag+1 Phosphide P-3 Acetate (C2H3O2)-1
Which of these are: •Metals? •Nonmetals?
•Polyatomic ions?•Transition metals?