No picutres today - camera battery needs to be recharged
Period 1
Discussed Problem with Cross and Drop Method and How to Deal with It
Reviewed Ionic Bonding and Writing Chemical and Structural Formulas and Naming with 3 class examples
Pb+4 + O-2
Be + P
Ca + S
Bond with a Classmate Activity - marked out of 10 (done in class but a few of you did not submit yours)
Review Crossword on Physical and Chemical Properties
Review Handout on Ionic Bonding (some additons were made but this link covers most of the handout)
HMK
Both Review Worksheets to be completed for Monday
Chemistry Test Next Friday (remember there will not be a Science class on Thursday due to the OSSLT so ask questions before then)
Dress for Wet Lab for Monday (long pants and closed shoes)
Period 3
Note on Ionic Bonding
Practice with Ionic Bonding and Using the Balance the Charge Method and the Cross and Drop Method
HMKChemistry Test Next Friday
Any work not completed in class today
Period 4
Handed in Road Map Activity Worksheet
Handed in signed and corrected tests (TEST Retake is Tuesday)
Handed back climate assignment, drainage map, Q1-4 topography/military grid systems
Worked on Trouble with Topos (Matching) Assignment and handed in during class for evaluation
Worked through most of Topography Worksheet as a class
HMKAny work not done in class
Any work you have not yet completed
Test Retake is Tuesday
6 comments:
Hello ms, I had a question about theIonic Bonding Worksheet,how do you find the Electrons transfer from/to each atom and Ionic formed in this poduct.
I have a question about the Ionic bonding sheet also, with the boxes that say valence electrons and atoms do you draw the valence orbit for each element since they are cut in half or something else...
For the Ionic Bonding Worksheet, the is a box for:
the atom - list the element symbol
valence e - list the number only of valence e
then the number of e transferred is the number lost if it is a metal to get to an empty outer orbit and the number gained for a metal to get to a full outer orbit
then the last box is the ion charge - which is the charge when it becomes an ion also known as the combining capacity
Let me know if you have any other questions - good use of the BLOG!!!
Ms, I was confused on how to figure out the chemical formula on question 11) on the Ionic bonding worksheet. I think it is Al over 2 nad O over 3 but im not sure.
Al has a charge of +3
O has a charge of -2
LCM = 6 so you need 2 Al and 3 O
OR
Cross and Drop gets you 2 Al and 3 O
Both Result in a chemical formula of Al2O3 (with the numbers being subscripts)
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