1.Name the following compounds a. KBr b.Na 3 (PO 5 ) c.Al(NO 2 ) 3 2. Give the Chemical Formula for the following compounds a.Calcium Oxide b.Lithium Hydroxide c.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) = Fe 2+ – Iron (II) + oxygen =

POLYVALENT METALS & BONDING Fe(II) = Fe 2+ – Iron (II) + oxygen = Fe 2+ & O 2-

POLYVALENT METALS & BONDING Fe(II) = Fe 2+ – Iron (II) + oxygen = Fe 2+ & O 2-  Fe 2 O 2  FeO

POLYVALENT METALS & BONDING Fe(II) = Fe 2+ – Iron (II) + oxygen = Iron (II) Oxide Fe 2+ & O 2-  Fe 2 O 2  FeO

POLYVALENT METALS & BONDING Fe(II) = Fe 2+ – Iron (II) + oxygen = Iron (II) Oxide Fe 2+ & O 2-  Fe 2 O 2  FeO Fe(III) = Fe 3+ – Iron (III) + oxygen =

POLYVALENT METALS & BONDING Fe(II) = Fe 2+ – Iron (II) + oxygen = Iron (II) Oxide Fe 2+ & O 2-  Fe 2 O 2  FeO Fe(III) = Fe 3+ – Iron (III) + oxygen = Iron (III) Oxide

POLYVALENT METALS & BONDING Fe(II) = Fe 2+ – Iron (II) + oxygen = Iron (II) Oxide Fe 2+ & O 2-  Fe 2 O 2  FeO Fe(III) = Fe 3+ – Iron (III) + oxygen = Iron (III) Oxide Fe 3+ & O 2-

POLYVALENT METALS & BONDING Fe(II) = Fe 2+ – Iron (II) + oxygen = Iron (II) Oxide Fe 2+ & O 2-  Fe 2 O 2  FeO Fe(III) = Fe 3+ – Iron (III) + oxygen = Iron (III) Oxide Fe 3+ & O 2-  Fe 2 O 3

POLYVALENT METALS & BONDING Fe(II) = Fe 2+ – Iron (II) + oxygen = Iron (II) Oxide Fe 2+ & O 2-  Fe 2 O 2  FeO Fe(III) = Fe 3+ – Iron (III) + oxygen = Iron (III) Oxide Fe 3+ & O 2-  Fe 2 O 3 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) – Fe 2 O 3  Fe 3+ and O 2- Make sure the compound is neutral (positive & negative charges cancel out) – Fe 3+  2 x 3+ = 6+ – O 2-  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) – Fe 2 O 3  Fe 3+ and O 2- Make sure the compound is neutral SnO 3 

PRACTICE - POLYVALENT COMPOUNDS Formulas to Names – Have to determine the oxidation #/Charge of your metal. Reverse the criss cross (doesn’t always work) – Fe 2 O 3  Fe 3+ and O 2- Make sure the compound is neutral SnO 3  Sn 3+ and O 1-

PRACTICE - POLYVALENT COMPOUNDS Formulas to Names – Have to determine the oxidation #/Charge of your metal. Reverse the criss cross (doesn’t always work) – Fe 2 O 3  Fe 3+ and O 2- Make sure the compound is neutral SnO 3  Sn 3+ and O 1- – O 2-  3 x 2- = 6- – Sn ?  1 x ? = 6+

Common Ions Hydrogen H +1 Aluminum Al +3 Nitrate (NO 3 ) -1 Calcium Ca +2 Iron (III) Fe +3 Sulfate (SO 4 ) -2 Zinc Zn +2 Chlorine Cl -1 Carbonate (CO 3 ) -2 Copper (II) Cu +2 Hydroxide OH -1 Phosphate (PO 4 ) -3 Silver Ag +1 Phosphide P -3 Acetate (C 2 H 3 O 2 ) -1 Which of these are: Metals? Nonmetals? Polyatomic ions? Transition metals?

Common Ions Hydrogen H +1 Aluminum Al +3 Nitrate (NO 3 ) -1 Calcium Ca +2 Iron (III) Fe +3 Sulfate (SO 4 ) -2 Zinc Zn +2 Chlorine Cl -1 Carbonate (CO 3 ) -2 Copper (II) Cu +2 Hydroxide OH -1 Phosphate (PO 4 ) -3 Silver Ag +1 Phosphide P -3 Acetate (C 2 H 3 O 2 ) -1 Which of these are: Metals? Nonmetals? Polyatomic ions? Transition metals?

Common Ions Hydrogen H +1 Aluminum Al +3 Nitrate (NO 3 ) -1 Calcium Ca +2 Iron (III) Fe +3 Sulfate (SO 4 ) -2 Zinc Zn +2 Chlorine Cl -1 Carbonate (CO 3 ) -2 Copper (II) Cu +2 Hydroxide OH -1 Phosphate (PO 4 ) -3 Silver Ag +1 Phosphide P -3 Acetate (C 2 H 3 O 2 ) -1 Which of these are: Metals? Nonmetals? Polyatomic ions? Transition metals?

Common Ions Hydrogen H +1 Aluminum Al +3 Nitrate (NO 3 ) -1 Calcium Ca +2 Iron (III) Fe +3 Sulfate (SO 4 ) -2 Zinc Zn +2 Chlorine Cl -1 Carbonate (CO 3 ) -2 Copper (II) Cu +2 Hydroxide OH -1 Phosphate (PO 4 ) -3 Silver Ag +1 Phosphide P -3 Acetate (C 2 H 3 O 2 ) -1 Which of these are: Metals? Nonmetals? Polyatomic ions? Transition metals?

Common Ions Hydrogen H +1 Aluminum Al +3 Nitrate (NO 3 ) -1 Calcium Ca +2 Iron (III) Fe +3 Sulfate (SO 4 ) -2 Zinc Zn +2 Chlorine Cl -1 Carbonate (CO 3 ) -2 Copper (II) Cu +2 Hydroxide OH -1 Phosphate (PO 4 ) -3 Silver Ag +1 Phosphide P -3 Acetate (C 2 H 3 O 2 ) -1 Which of these are: Metals? Nonmetals? Polyatomic ions? Transition metals?

Common Ions Hydrogen H +1 Aluminum Al +3 Nitrate (NO 3 ) -1 Calcium Ca +2 Iron (III) Fe +3 Sulfate (SO 4 ) -2 Zinc Zn +2 Chlorine Cl -1 Carbonate (CO 3 ) -2 Copper (II) Cu +2 Hydroxide OH -1 Phosphate (PO 4 ) -3 Silver Ag +1 Phosphide P -3 Acetate (C 2 H 3 O 2 ) -1 Which of these are: Metals? Nonmetals? Polyatomic ions? Transition metals?

Common Ions Hydrogen H +1 Aluminum Al +3 Nitrate (NO 3 ) -1 Calcium Ca +2 Iron (III) Fe +3 Sulfate (SO 4 ) -2 Zinc Zn +2 Chlorine Cl -1 Carbonate (CO 3 ) -2 Copper (II) Cu +2 Hydroxide OH -1 Phosphate (PO 4 ) -3 Silver Ag +1 Phosphide P -3 Acetate (C 2 H 3 O 2 ) -1 Which of these are: Metals? Nonmetals? Polyatomic ions? Transition metals?

Common Ions Hydrogen H +1 Aluminum Al +3 Nitrate (NO 3 ) -1 Calcium Ca +2 Iron (III) Fe +3 Sulfate (SO 4 ) -2 Zinc Zn +2 Chlorine Cl -1 Carbonate (CO 3 ) -2 Copper (II) Cu +2 Hydroxide OH -1 Phosphate (PO 4 ) -3 Silver Ag +1 Phosphide P -3 Acetate (C 2 H 3 O 2 ) -1 Which of these are: Metals? Nonmetals? Polyatomic ions? Transition metals?

Common Ions Hydrogen H +1 Aluminum Al +3 Nitrate (NO 3 ) -1 Calcium Ca +2 Iron (III) Fe +3 Sulfate (SO 4 ) -2 Zinc Zn +2 Chlorine Cl -1 Carbonate (CO 3 ) -2 Copper (II) Cu +2 Hydroxide OH -1 Phosphate (PO 4 ) -3 Silver Ag +1 Phosphide P -3 Acetate (C 2 H 3 O 2 ) -1 Which of these are: Metals? Nonmetals? Polyatomic ions? Transition metals?