[10/3/11 - WELCOME BACK BLOGGER! NOW WITH ADDED CHEM (Each sold seperately, batteries not included.)]
WELCOME BACK BLOGGER.
WELCOME BACK BLOGGER.
(This is the 3rd time I've had to retype this. Lousy Blogger.
It was much wittier the first two times.)
Let's get this show on the road.
According to Mr. Paek, this week is where Chem officially "really starts." I'm fairly certain that's how he said it, but I'll leave the quotes anyway.
We learned how to tell the charges of atoms, and molecules, so that we could know how many electrons something must gain or lose to bond.
This is demonstrated with the Periodic Table.
Based on this wonderful artist's rendition in Photoshop:
Clickith yonder. :
Basically, to get the charge, count how many spaces the shortest distance from your element, to the nobles gasses is. Assume Pac-Man physics are in effect. (Go too far left, end up on the right.) There is your charge. If you want to bond two elements, their charges must match to make 8 electrons.
For example, you have an element with charge of 3- (correct notation), and one of 2+ charge. For these to bond, you need two of the 3- ones, and 3 of the 2+ ones. [Kindly ignore the fact that I can't get subscripts to work.] (N2 + CA3) for example, or N2CA3, could bond. (Theoretically, at least. I honestly have no clue if these two actually naturally bond.) The first column are called Alkali metals, and the second are Alkaline Earth Metals. You can remember the word Alkaline goes with earth, because the equator is a line. Also Ignore Hydrogen (The top left one) for Alkali metals, it isn't part of that family. Alkali metals are never found alone in nature. You will never find Sodium by itself.
Fun Fact: They are also very explosive when they come in contact with water, becoming more and more explosive as you go down the line, especially Francium, which is highly illegal. Seriously. That thing will blow a hole in a tanker. Don't try this at home kids. (Without putting it on YouTube.)
The reason Paek says chem "starts" today, or rather "started" if you were absent, is because now quizzes are going to be more frequent. They're going to be worth 10x10^9% of your grade. Just kidding. We'll have a short 5 point quiz every day for the next 8 class days or so. Also we get extra credit if we have enough 100%s on our quizzes. Which could leave you with 45/40 of the possible points on these 8 quizzes in question. No pun intended.
Oh really? :
Honestly I have no idea who hasn't gone yet. I don't know everyone's name in the class.
Everyone who hasn't gone yet, pick a number between 1 and 300. Whoever is closest has to go. I'll remember the number for tomorrow.
~Jordan M. Paek 8th Period.
Happy 50th!
P.S. Try the new interface. It's much more aesthetically pleasing, and the publish button works so much better. It actually lets you know that it's loading so you aren't hanging there waiting for it if you have a slow connection. Plus it's awesome.
