CHEM 1001/CHM1020/CHM1025C/CHM1032C††† Name: __Answers___

Module Three Sample Pretest

Module Three: Part D††††††† Electron Dot Formulas†††††††† 10 points

Using the periodic chart, draw the electron dot formulas of the following elements (the numbers shown are the elementís atomic number and mass number):

1.6C12

†††††††

2.14Si28

†††††††

3.†† 9F19

†††††††

4.11Na23

†††††††

5.15P31

†††††††

6.†† 1H1

 

7.†† 7N14

 

8.†† 8O16

 

9.†† 10Ne20

 

10.16S32

Complete Table of Representative Elementsí Dot Structures

††††††††††††††††††

Module Three: Part F†† ††††Periodic Ionic Properties††††††† 10 points

Using a periodic chart, write the ionic character (monoatomic ionic charge) of the following elements: (The number before the element is its atomic number)

 

1.19 K†††† _1+_____†††††††††††††††††††††††† 6. ††9F††††† __1-__

 

2.20Ca††† _2+____†††††††††††††††††††††††††† 7.1H††††† __1+__††† __1-___††

 

3.7N††††††† _3-____†††††††††††††††††††††††††† 8.††† 16S†††† __2-__

4.17Cl††††† _1-____†††††††††††††††††††††††††† 9.††† 10Ne†† __0___

 

5.53I ††††††† _1-____†††††††††††††††† ††††††† 10.15P†††† __3-___††††††††