1.name the following compounds a. kbr b.na 3 (po 5 ) c.al(no 2 ) 3 2. give the chemical formula for...
TRANSCRIPT
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?