1.Name the following compounds a. KBr b.Na 3 (PO 5 ) c.Al(NO 2 ) 3 2. Give the Chemical Formula for...

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 =

• Fe(II) = Fe2+

– Iron (II) + oxygen =

• Fe(II) = Fe2+

– Iron (II) + oxygen =• Fe2+ & O2-

• Fe(II) = Fe2+

– Iron (II) + oxygen = • Fe2+ & O2- Fe2O2 FeO

• Fe(II) = Fe2+

– Iron (II) + oxygen = Iron (II) Oxide• Fe2+ & O2- Fe2O2 FeO

• Fe(II) = Fe2+

• Fe(III) = Fe3+

– Iron (III) + oxygen =

• Fe(II) = Fe2+

• Fe(III) = Fe3+

– Iron (III) + oxygen = Iron (III) Oxide

• Fe(II) = Fe2+

• Fe(III) = Fe3+

– Iron (III) + oxygen = Iron (III) Oxide• Fe3+ & O2-

• Fe(II) = Fe2+

• Fe(III) = Fe3+

– Iron (III) + oxygen = Iron (III) Oxide• Fe3+ & O2- Fe2O3

• Fe(II) = Fe2+

• 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

• 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-

• Make sure the compound is neutral

• SnO3

• Make sure the compound is neutral

• SnO3 Sn3+ and O1-

• 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)

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?

1.Name the following compounds a. KBr b.Na 3 (PO 5 ) c.Al(NO 2 ) 3 2. Give the Chemical Formula for...

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