electron dot diagram

Welcome to the spring melt!  We need it!  

There isn't much money left in most 2014-2015 science department budgets.  For inexpensive chemistry lab ideas, buy my lab book Chemistry on a Budget for $20.56 at amazon.com or $23 at lulu.com. It will take a few weeks to get to you, so order now! 

http://www.amazon.com/Chemistry-Budget-Marjorie-R-Heesemann/dp/0578129159/ref=sr_1_1?s=books&ie=UTF8&qid=1389410170&sr=1-1&keywords=chemistry+on+a+budget

http://www.lulu.com/shop/marjorie-r-heesemann/chemistry-on-a-budget/paperback/product-21217600.html

This book contains 13 labs using consumable materials purchased from local stores.  There are two versions of each lab, one with a ten-question conclusion and one with directions for a full lab report.  This way the teacher has the option!  Each lab is two pages to allow for one two-sided handout.

My past blog entry, 03/04/2015, was about Calorimetry, the measurement of the transfer of heat energy.  I’m at a loss for new blog ideas – looking at the Topic List on this website, a full year of an Introductory Chemistry course is pretty much covered! – if you have topics you’d like to see more of, let me know!

The Electron Dot Diagram (or Lewis Dot Diagram) is a way to visualize bond combinations with paper and pencil, knowing that it is not a true representation of the complexities of chemical bonding and the electrons involved.

Here is one video:

Another way to approach drawing the diagram is the pair the first two dots  (electrons) to represent the s sublevel and then draw in the next three dots singly then pair them up to represent the p sublevels.  

Here is another video that shows a little more about the diagrams and gets into bonding:

Notice there’s a clip from a movie called The Periodic Table that I have on the blog post from 02/23/2014.   

Here is a basic electron (Lewis) dot worksheet that could be projected for a class with the examples used for a class lecture.

http://www.gpb.org/files/pdfs/gpbclassroom/chemistry/electronsDiagramsLewisStructuresWkst.pdf


This introductory electron (Lewis) dot worksheet (2 pages) has a review of atomic structure and the electron dot diagram work:

http://www.d70schools.org/teachersites/lib/redirect.php?res_id=12055


This electron (Lewis) dot worksheet contains a lot of information and provides a useful review for students:

http://www.csun.edu/~jte35633/worksheets/Chemistry/5-7LewisDotDiagrams.pdf


This electron (Lewis) dot worksheet contains many examples, including polyatomic ions:

http://images.pcmac.org/SiSFiles/Schools/TX/DesotoISD/DHS/Uploads/Forms/Zero%20Make%20Up%20Assignment%20Lewis%20Structures%2010-12.pdf

Check out the Topic List to help you to find past Blog entries.

Have a good weekend!