G225 - Earth Materials: Daily Lesson #1
Atomic Structure and the Periodic Table of the Elements

Periodic Table

Element = Silicon                                                          The Periodic Table of the Elements
Atomic # (Z)  = 14
Electron Configuration = 1s2 2s2 2p6 3s2 3p2
Common Ionization State = +4
 
 

This assignment is due before 9 PM, Wednesday, September 2, 1999.

Please type LAST name:

Please type your LAST NAME and LAST FOUR SS# digits (eg: Smith3256):

I received no help from anyone on this assignment. 

The following three questions refer to the material you were to read in preparation to the lesson. Questions one and two require you to write a three or four sentence response. Number three is a multiple choice question. Click in the appropriate circle.

You may change your mind as often as you wish. When you are satisfied with your responses, click the SUBMIT LESSON button at the bottom of this page. 

1.

The Periodic Table of the Elements contains both rows and columns.  What atomic structure characteristic is common to elements within the same row?  What characteristic is common to elements in the the same column?

 
 

2.

Elements on the far left side of the periodic table typically take on a positive oxidation state (i.e. become cations) while those on the far right side (but not the extreme right!) take on a negative oxidation state (i.e. become anions).  Why? (Note...Leslie Harlacker pointed out that I had right and left mixed up.  She is correct.  For anyone who was with me in Montana this summer, they will know that this is a problem of mine...particularly when giving traffic directions!!!  I hope that I haven't confused anyone!!!)


 
 

3.

Element X has an electron configuration of 1s2 2s2 2p5; element Y has an electron configuration of 1s2 2s2 2p6 3s2 3p1; and element Z has an electron configuration of 1s2 2s2 2p6.  The most likely ionization states of elements X, Y and Z are, respectively

  -1, 0, +1

  0, +1, -1

  +1, 0, -1

  -1, +1, 0


 
 

Below is a space for your thoughts, including general comments about today's assignment (what seemed impossible, what reading didn't make sense, what we should spend class time on, what was "cool", etc.):


 
 

You may change your mind as often as you wish. When you are satisfied with your responses click the SUBMIT button.