Naming Simple Compounds - California State University ...

1 Naming Simple CompoundsCopyright Houghton Mifflin Company. All rights 2 Ionic Compounds consist of positive and negative ions. have attractions called ionic bondsbetween positively and negatively charged ions. have high melting and boiling points. are solid at room CompoundsCopyright Houghton Mifflin Company. All rights 3 Salt is An Ionic CompoundSodium chloride or table salt is an example of an ionic 2005 by Pearson Education, as Benjamin CummingsCopyright Houghton Mifflin Company. All rights 4 Naming Ionic Compounds with Two ElementsTo name a compound that contains two elements, identify the cationand anion.

2 Name the cation first followed by the name of the Houghton Mifflin Company. All rights 5An ionic formula consists of positively and negatively charged ions. is neutral. has charge positive charge = total negative chargeThe symbol of the metal is written first followed by the symbol of the Ionic Compounds Type (I) Copyright Houghton Mifflin Company. All rights 6 Charge Balance In MgCl2In MgCl2, a Mg atom loses two valence electrons. two Cl atoms each gain one electron. subscripts indicate the number of ions needed to give charge 2005 by Pearson Education, as Benjamin CummingsCopyright Houghton Mifflin Company.

3 All rights 7 Charge Balance in Na2 SIn Na2S. two Na atoms lose one valence electron each. one S atom gains two electrons. subscripts show the number of ions needed to give charge 2005 by Pearson Education, as Benjamin CummingsCopyright Houghton Mifflin Company. All rights 8 Guide to Writing Formulas from the NameCopyright 2005 by Pearson Education, as Benjamin CummingsCopyright Houghton Mifflin Company. All rights 9 Writing Ionic Formulas from ChargesCharge balance is used to write the formula forsodium nitride, a compound containing Na+and N3 .Na+3Na+ +N3 =Na3 NNa+3(+1) + 1(3-) = 0 Copyright Houghton Mifflin Company.

4 All rights 10 The balance of charges in Aluminum OxideCopyright Houghton Mifflin Company. All rights 11 Write the ionic formula of the compound with Ba2+and Cl . Write the symbols of the +Cl Balance the charges. Ba2+Cl twoCl-neededCl Write the ionic formula using a subscript 2for two chloride ions that give charge balance. BaCl2 formula from Ionic ChargesCopyright Houghton Mifflin Company. All rights 12 Select the correct formula for each of the following ionic Na+ and S2-1) NaS2) Na2S3) NaS2B. Al3+ and Cl-1) AlCl32) AlCl3) Al3 ClC. Mg2+and N3-1) MgN2) Mg2N33) Mg3N2 Learning CheckCopyright Houghton Mifflin Company.

5 All rights 13A. Na+ and S2-2) Na2S check: 2Na++ S2-= 2(1+) + 1(2-) = 0B. Al3+ and Cl-1) AlCl3 check: Al3++ Cl-= (3+) + 3(1-) = 0C. Mg2+ and N3-3) Mg3N2 check: 2Mg2++2N3-= 2(3+) + 2(3-) = 0 SolutionCopyright Houghton Mifflin Company. All rights 14 Useful relationships from the periodic tableCopyright Houghton Mifflin Company. All rights 15 Names of Some Common IonsCopyright 2005 by Pearson Education, as Benjamin CummingsCopyright Houghton Mifflin Company. All rights 16 formula IonsNamecation anionNaClNa+Cl-sodium chlorideK2SK+S2-potassium sulfideMgOMg2+ O2-magnesium oxideCaI2Ca2+ I-calcium iodideAl2O3Al3+ O2-aluminum oxideExamples of Ionic Compounds with Two ElementsCopyright Houghton Mifflin Company.

6 All rights 17 Learning CheckWrite the formulas and names for Compounds of the following ions:Br S2 N3 Na+Al3+Copyright Houghton Mifflin Company. All rights 18 SolutionBr S2 N3 Na+Al3+NaBrsodium bromideNa2 Ssodium sulfideNa3 Nsodium nitrideAlBr3aluminum bromideAl2S3aluminum sulfideAlNaluminum nitrideCopyright Houghton Mifflin Company. All rights 19 Binary Ionic Compounds (Type II) Transition Metals form Positive Ions Most transition metals and Group 4(14) metalsform 2 or more positive +,Ag+, and Cd2+ form only one ion. Copyright Houghton Mifflin Company. All rights 20 Metals that form more than One CationThe name of metals with two or more positive ions(cations) use a Roman numeralto identify ionic 2005 by Pearson Education, as Benjamin CummingsLead Pb2+ lead(II)Pb4+lead(IV)Copyright Houghton Mifflin Company.

7 All rights 21 Naming Ionic Compounds with Variable Charge MetalsCopyright 2005 by Pearson Education, as Benjamin CummingsCopyright Houghton Mifflin Company. All rights 22 Naming Variable Charge MetalsTransition metals with two different ions use a Roman numeralafter the name of the metal to indicate ionic charge. Copyright Houghton Mifflin Company. All rights 23 Naming FeCl2To name FeCl21. Determine the charge of the cation using the charge of the anion (Cl-).Fe ion + 2 Cl-= Fe ion + 2- = 0Fe ion = 2+2. Name the cation by the element name and add aRoman numeral in parenthesis to show its += iron(II)3.

8 Write the anion with an = iron(II) chlorideCopyright Houghton Mifflin Company. All rights 24 Naming Cr2O3To name Cr2O31. Determine the charge of cation from the anion (O2-).2 Cr ions + 3 O2-= 02 Cr ions + 3 (2-) = 0 2 Cr ions - 6 = 02 Cr ions = +6 Cr ion = 3+ = Cr3+2. Name the cation by the element name and add aRoman numeral in parenthesis to show its += chromium(III)3. Write the anion with an (III) oxide = Cr2O3 Copyright Houghton Mifflin Company. All rights 25 Learning CheckSelect the correct name for Fe2S31) iron sulfide2) iron(II) sulfide3) iron(III) sulfideB.

9 CuO1) copper oxide2) copper(I) oxide 3) copper(II) oxideCopyright Houghton Mifflin Company. All rights 26 SolutionSelect the correct name for Fe2S33) iron (III) sulfide Fe3+ S2-B. CuO3) copper (II) oxide Cu2+ O2-Copyright Houghton Mifflin Company. All rights 27A polyatomic ion is a group of atoms. has an overall ionic examples of polyatomic ions areNH4+ammoniumOH hydroxideNO3 nitrateNO2 nitriteCO32 carbonatePO43 phosphateHCO3 hydrogen carbonate(bicarbonate)Binary Compounds with Polyatomic IonsCopyright Houghton Mifflin Company. All rights 28 Some Compounds with Polyatomic IonsCopyright 2005 by Pearson Education, as Benjamin CummingsCopyright Houghton Mifflin Company.

10 All rights 29 Copyright Houghton Mifflin Company. All rights 30 The names of common polyatomic anions end in nitratePO43 phosphate with one oxygen lessend in nitritePO33 phosphite with hydrogen attached use the prefix hydrogen(or bi).HCO3 hydrogencarbonate(bicarbonate)HSO3 hydrogensulfite (bisulfite)Some Names of Polyatomic IonsCopyright Houghton Mifflin Company. All rights 31 Names and Formulas of Common Polyatomic IonsCopyright 2005 by Pearson Education, as Benjamin CummingsoxyanionsCopyright Houghton Mifflin Company. All rights 32 Names and Formulas of Common Polyatomic IonsCopyright 2005 by Pearson Education, as Benjamin CummingsCopyright Houghton Mifflin Company.