Problems 

•          Draw the electron configuration, electron diagram and Lewis structure for Aluminum ion?(Problem 1)

•          Draw the electron configuration, electron diagram and list the Lewis structure for Iodide ion?( Problem 2)

•          Draw the electron configuration, electron diagram and list the Lewis structure for Gallium?( Problem 3)

•          Draw the electron configuration, electron diagram and Lewis structure for Aluminum ion?(Problem 1)

•          Ne 3S0    3p0

•                __         __ __ __

•          Ne 3s                3p

  . .

:Al+3 :

  . .

•          Draw the electron configuration, electron diagram and list the Lewis structure for Iodide ion?( Problem 2)

•          Kr 5s2 4d10   5p6

•                ↑↓     ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓

•          Kr 5s                    4d                        5p

    . . 

 :I-1 :

  . .

•          Draw the electron configuration, electron diagram and list the Lewis structure for Gallium?( Problem 3)

•          Ar 4s2 3d10 4p1 

•                ↑↓     ↑↓ ↑↓ ↑↓ ↑↓ ↑↓      ↑_ __ __

•          Ar 4s                             3d                                      4p

    .  

 :Ga

•          Draw the electron configuration, electron diagram and Lewis structure for Selenium?(Problem 1)

•          Draw the electron configuration and list the Lewis structure for Aluminum Phosphide?( Problem 2)

•          Draw the electron configuration, electron diagram and list the Lewis structure for Zirconium(II) ion?( Problem 3)

•          Draw the electron configuration, electron diagram and Lewis structure for Selenium?(Problem 1)

•          Ar 4s2 3d10 4p4 

•                ↑↓     ↑↓ ↑↓ ↑↓ ↑↓ ↑↓                      ↑↓ ↑_ ↑_

•          Ar 4s                             3d                                      4p

       . .  

 :Se .

   .

•          Draw the electron configuration and list the Lewis structure for Aluminum Phosphide?( Problem 2)

•          Al+3 Ne 3s0 3p0

•          P-3     Ne 3s2 3p6

   . .    . .

:Al+3 : :P-3 :

   . .    . .

•          Draw the electron configuration, electron diagram and list the Lewis structure for Ziconium(II) ion?( Problem 3)

•          Kr 5s2 4d0

•               ↑↓  __ __ __ __ __

•          Kr 5s                    4d

:Zr+2

•          Draw the electron configuration, electron diagram and Lewis structure for Selenide ion.(Problem 1)

•          Draw the electron configuration, electron diagram and list the Lewis structure for Titanium.( Problem 2)

•          Draw the electron configuration and list the Lewis structure for Strontium Nitride.( Problem 3)

•          Draw the electron configuration, electron diagram and Lewis structure for Selenide ion.(Problem 1)

•          Ar 4s2 3d10   4p6

•                ↑↓     ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓

•          Ar 4s                    3d                        4p

       . . 

 :Se-2 :

  . .

•          Draw the electron configuration, electron diagram and list the Lewis structure for Titanium.( Problem 2)

•          Ar 4s2 3d2

•                ↑↓    ↑_ ↑_ __ __ __        

•          Ar 4s                             3d                     

 :Ti

•          Draw the electron configuration and list the Lewis structure for Strontium Nitride.( Problem 3)

•          Sr+2      3(Kr 5s0)

•          N-3      2(He 2s2 2p6)

  . .               . .      . .             . .           . .

: Sr+2 :: N-3 :: Sr+2 ::N-3 :: Sr+2 :

  . .           . .         . .           . .   . .

•          Draw the electron configuration, electron diagram and Lewis structure for Nickel (III) ion?(Problem 1)

•          Draw the electron configuration, electron diagram and list the Lewis structure for Titanium(IV) ion?( Problem 2)

•          Draw the electron configuration and list the Lewis structure for Strontium Oxide?( Problem 3)

•          Draw the electron configuration, electron diagram and Lewis structure for Nickel (III) ion?(Problem 1)

•          Ar 4s2 3d5

•                ↑↓     ↑_ ↑_ ↑_ ↑_ ↑_

•          Ar 4s                    3d

 :Ni+3

•          Draw the electron configuration, electron diagram and list the Lewis structure for Titanium(IV) ion?( Problem 2)

•          Ar 4s0 3d0

•               __  __ __ __ __ __  

•          Ar 4s                             3d                     

      ..

 :Ti+4 :

   ..

•          Draw the electron configuration and list the Lewis structure for Strontium Oxide?( Problem 3)

•          Sr+2      Kr 5s0

•          O-2      He 2s2 2p6

  . .            . .         

: Sr+2 :: O-2 :

  . .            . .                 

•          Draw the electron configuration, electron diagram and Lewis structure for Osmium (III) ion!(Problem 1)

•          Draw the electron configuration, electron diagram and list the Lewis structure for Chromium(I) ion!( Problem 2)

•          Draw the electron configuration and list the Lewis structure for Sodium Sulfide!( Problem 3)

•          Draw the electron configuration, electron diagram and Lewis structure for Osmium (III) ion?(Problem 1)

•          Xe 6s0 4f14 5d5

•                __   ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑_ ↑_ ↑_ ↑_ ↑_

•          Xe 6s                    4f                                                5d

      ..

 :Os+3 :

   ..

•          Draw the electron configuration, electron diagram and list the Lewis structure for Chromium(I) ion?( Problem 2)

•          Ar 4s0 3d5

•                __     ↑_ ↑_ ↑_ ↑_ ↑_

•          Ar 4s                    3d

      ..

 :Cr+1 :

   ..

•          Draw the electron configuration and list the Lewis structure for Sodium Sulfide!( Problem 3)

•          Na+1      2(Ne 3s0 )

•          S-2      Ne 3s2 3p6

   . .    . .                . .            

: Na+1 :: S-2 : : Na+1 :

   . .    . .                . .            

•          Draw the electron configuration, electron diagram and Lewis structure for Selenide ion.(Problem 1)

•          Draw the electron configuration and list the Lewis structure for Aluminum Sulfide!( Problem 2)

•          Draw the electron configuration, electron diagram and list the Lewis structure for Zirconium.( Problem 3)

•          Draw the electron configuration, electron diagram and Lewis structure for Selenide ion?(Problem 1)

•          Ar 4s2 3d10 4p6 

•                ↑↓     ↑↓ ↑↓ ↑↓ ↑↓ ↑↓                      ↑↓ ↑↓ ↑↓

•          Ar 4s                             3d                                      4p

       . .  

 :Se :2-

   . .

•          Draw the electron configuration and list the Lewis structure for Aluminum Sulfide?( Problem 2)

•          Al+3 2(Ne 3s0 3p0)

•          S-2    3 ( Ne 3s2 3p6)

  . .    . .          . .            . .             . .

 :S-2 : :Al+3 : : S-2 : :Al+3 : : S-2 :

  . .    . .          . .            . .             . .

•          Draw the electron configuration, electron diagram and list the Lewis structure for Zirconium?( Problem 3)

•          Kr 5s2 4d2

•               ↑↓  ↑_ ↑__ __ __ __

•          Kr 5s                    4d

:Zr

•          Draw the electron configuration and list the Lewis structure for Titanium(IV) Oxide?( Problem 2)

•          Ar 4s0 3d0

•          O-2     2( He 2s2 2p6 )

..  ..       ..

:O-2::Ti+4 ::O-2:

  ..  ..       ..  

•          Draw the electron configuration and Lewis structure for Nickel (III) Fluoride?(Prob 1)

•          Ni+3 1(Ar 4s2 3d5 )

•          F-1       3(He 2s2 2p6 )

   ..            ..

:F-1::Ni+3:F-1:

 ..            ..

      ..

          :F-1 :

     ..

•          Draw the electron configuration and list the Lewis structure for Copper(I) Sulfide!( Problem 2)

•          Cu+1 2(Ar 4s0 3d10)

•          S-2      ( Ne 3s2 3p6)

     . .        . .        . .     

: Cu+1 : : S-2 : :Cu+1 :

    . .     . .                 . .             

•          Draw the electron configuration, electron diagram and list the Lewis structure for Lithium Oxide.( Problem 3)

•          2(He 2s0)  

•                __

•          2(He 2s )         

•           He 2s2  2s6

•           ↑↓   ↑↓ ↑↓ ↑↓

•          He2s         2p

   ..

:Li+1  :O-2 :  :Li+1

        ..

Chemistry Chapter 7 (p.165-194)                                   

Which of the following would have a higher lattice energy? (Think about electronegativities!)

A) KCl  or KF                                          B) LiI or NaI               C) RbBr  or  SrBr2

D) MgO  or MgS                          E) Na2O  or MgO

Indicate if the following are anions, cations, polyatomic ions, monoatomic ions, or atoms!

A)   NH4+1      B) Al       C) ClO2-1 D) HPO4-2  

E) Aluminum    F) Phosphate ion G) Strontium ion H) O-2   I) Cu+1

Answers below

A) KCl  or KF                                         

KF F has higher electronegativity.  (Higher up on the periodic table.)

B) LiI or NaI

LiI   Li has higher electronegativity.  (Higher up on the periodic table.)

C)RbBr  or  SrBr2

SrBr2   Sr has higher electronegativity.  (Farther to the right on the periodic table.)

D) MgO  or MgS

MgO O has higher electronegativity.  (Higher up on the periodic table.)

E) Na2O  or MgO

MgO Mg has higher electronegativity.  (Farther to the right on the periodic table.)

Indicate if the following are anions, cations, polyatomic ions, monoatomic ions, or atoms!

F) NH4+1 cations, polyatomic ions

G)  Al   atom

H)  ClO2-1  anions polyatomic ions

I)  HPO4-2     anions polyatomic ions

J) Aluminum   atom

Phosphate ion anions, polyatomic ions

K)   Strontium ion cations monoatomic ions

L) O-2 anions monoatomic ions

M) Cu+1 cations, monoatomic ions

Name the following compounds

CaCl2                                                   LiF  

MgBr2                                                KBr

Al(NO2)3               Cs3PO4

     *Polyatomic chart on page 221

Name the following ions:

K+1                                 ClO4-1        

H+1                    N-3

Solution

CaCl2                   Calcium Chloride

LiF         Lithium Fluoride

MgBr2    Magnesium Bromide

KBr       Potassium Bromide

Al(NO2)3   Aluminum Nitrite

Cs3PO4 Cesium Phosphate

Name the following ions:

K+1         ClO4-1         H+1                          N-3

K+1                     Potassium Ion

ClO4-1                           Perchlorate  ion 

H+1                    Hydrogen Ion                 

N-3                     Nitride Ion

Name the following formula units:

FeO                          MgS   

Na(ClO)               Ba(BrO3)2

Draw the following formula units:

Lead Sulfide  

Copper(I) Nitride

Aluminum Iodide

Sodium Selenide

Name the following ions:

Ca+2                                          PO4-3         

Mn+3                             O-2

Solution

FeO          Iron(II) Oxide

MgS   Magnesium Sulfide

Na(ClO)                Sodium Hypochlorite

Ba(BrO3)2   Barium Bromate

Lead Sulfide 

Pb +4S-2

PbS2

Copper(I) Nitride

Cu+1N-3

Cu3N

Aluminum Iodide

Al+3 I-1

AlI3

Sodium Selenide

Na+1 Se-2

Na2Se

Name the following ions:

Ca+2                  Calcium ion

Cation and monoatomic   

PO4-3                Phosphate ion

anion and polyatomic

Mn+3                 Manganese (III) ion

Cation and monoatomic   

O-2 Oxide ion

anion and monoatomic     

Name the following formula units:

MgCl2                     NiO2

W(SO3)2   Fr2CrO4

Write the following formula units:

Nickel(II) Chlorate  

Silver(II) Bromide

Aluminum Thiosulfate

Calcium Sulfide

Solution

MgCl2                     Magnesium Chloride

NiO2                        Nickel(IV) Oxide

W(SO3)2   Tungsten(IV) Sulfite

Fr2CrO4    Francium Chromate

Nickel(II) Clorate      Ni(ClO3)2                     

Silver(II) Bromide                 AgBr2  

Aluminum Thiosulfate Al2(S2O3) 3 

Calcium Sulfide      CaS

Name the following compounds

 CuO    K2S SrF2 LiCl

Write the following formula units:

Lead Sulfate

Rubidium Phosphide

Aluminum Carbonate

Sodium Bromide

Solution

CuO    

Copper(II) Oxide

K2S

Potassium Sulfide

SrF2

Strontium Fluoride

LiCl

Lithium Chloride

Lead Sulfate

Pb(SO4)2

Rubidium Phosphide

Rb3P

Aluminum Carbonate

Al2(CO3)3

Sodium Bromide

NaBr

Name the following formula units:

NbO2                      Ni3(PO4)2    

Mg3N2                               Be2C

Write the following formula units:

Copper(III) Nitrite  

Barium Telluride

Ammonium Sulfate

Lithium Arsenide

Solution

NbO2                  Niobium(IV) Oxide

Ni3(PO4)2 Nickel(II) Phosphate

Mg3N2               Magnesium Nitride

Be2C       Beryllium Carbide

Copper(III) Nitrite     Cu(NO2)3                    

Barium Telluride             BaTe 

Ammonium Sulfate  (NH4) 2SO4     

Lithium Arsenide   Li3As