IONIC VS COVALENT BONDING by zqc90133

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									 Name                ______________                         Date ___           ___          Period                        _

CHEMISTRY
IONIC VS COVALENT BONDING

1. What part of an atom's structure seems to be largely responsible for its chemical properties?



2. a. What is ionic bonding? ______________________________________________________

   b. What is covalent bonding? ___________________________________________________


3. When an ionic bond is formed between two atoms, each atom usually attains an outer shell arrangement similar to what
group of elements?


5. What is an ion?


6. Write electron-dot symbols for the following elements:

a. Phosphorus _____________ f. Potassium ______________

b. Calcium _______________        g. Sulfur _________________

c. Bismuth _______________        h. Neon _________________

d. Carbon _______________         i. Lead __________________

e. Aluminum ____________          j. Nitrogen _______________


7. Complete the Lewis Dot Structure for the following covalent bonds:

     Molecular Formula                                                     Electron Dot


HCl




H2O




NH3
O2




N2




CH4


8. Complete the following table regarding ions.

                         Ion      Number of   Number of   Number of Electrons     Same Electrons as
     Ion Name
                       Symbol      Protons    Electrons     Lost or Gained        What Noble Gas?


     e.g. fluoride        F-            9         10          Gained one                Neon

1.                                    53          54

2.                                    16                      Gained two

3. potassium                                                    Lost one

4.                      Ca2+

5.                                    35          36
6.                       Sr²+


9. Write electron-dot formulas and ionic formulas for the compounds that would be formed between the following pairs or
elements:

                      Elements                                             Electron-dot formula


                a. Lithium and iodine


                b.   Calcium and fluorine


                c. Potassium and sulfur

								
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