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Polyatomic Ions Transition Ions

Polyatomic Ions Transition Ions. Polyatomic Ions. Covalent structures can sometimes form with extra electrons as ions. O. O. O. S. O. Polyatomic Ions. These covalent structures are called polyatomic ions.

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Polyatomic Ions Transition Ions

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  1. Polyatomic IonsTransition Ions

  2. Polyatomic Ions Covalent structures can sometimes form with extra electrons as ions. O O O S O

  3. Polyatomic Ions These covalent structures are called polyatomic ions. Many negative polyatomic ions have a central atom bound to a group of oxygen atoms which we refer to as the oxyanions.

  4. Common Oxyanions • Common standard form oxyanions include: • CO32- carbonate • NO31-nitrate • PO43-phosphate • SO42-sulfate • ClO31-chlorate

  5. Other Common Polyatomics • Also be aware of the following: • NH41+ ammonium • H3O1+ hydronium • Cr2O72- dichromate • MnO41- permanganate • OH1-hydroxide • HCO31- bicarbonate

  6. Naming Polyatomics Practice 1) Name the following salts: NH4Cl K2SO4 MgCO3 Ba(OH)2 AlPO4 Sr(ClO3)2 AgNO3 KMnO4 NaHCO3 ZnCr2O7

  7. Chemical Formula Practice 2) Write chemical formulas for the salts below: lithium sulfate barium chlorate aluminum hydroxide strontium carbonate sodium nitrate potassium dichromate cesium bicarbonate sodium permanganate magnesium phosphate ammonium hydroxide

  8. Ions with Multiple Charges Some transition and post-transition metals will give away different numbers of electrons to become more stable. Atom Nickel Nickel (II) Nickel (III) Symbol Ni Ni2+ Ni3+ Electron Config [Ar] 4s23d8 [Ar] 3d8 [Ar] 4s23d5

  9. Common Transition Ions

  10. Naming with Transition Ions Look at the anion’s charge to determine the cation charge. CuCl2 2Cl1- Name the cation based on the charge number. Cu2+

  11. Transition Naming Practice 3) Name the salts below (stock name): FeF3 SnO2 HgCO3 CuOH Co2(SO4)3 Ni(NO3)2 MnBr4 CrS2 Pb3(PO4)2 Fe(OH)2

  12. Complete the Table

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