Blog Post 47
by EpicSkills32, Jan 10, 2014, 5:57 AM
![$\ [\text{Blog Post 47}] $](http://latex.artofproblemsolving.com/0/d/7/0d7cd1754187cad4740610109053e24a272d0efa.png)
sigh* the times I don't really come on, the most exciting stuff happens.
hmm... where to start.
On Monday(or was it Tuesday...) I got a perfect score on my Pre-Calculus test. (Regression Analysis)
I got a 94(or was it 96) on my Chemistry test. I don't know about you, but for me, quantum mechanics is pretty cool. Stoichiometry is a pain for me, but I just understand atoms/electrons/ etc. Those trends in the periodic table...I recently began to understand how and why they are so important and relevant. For example:
chemistry!
Electronegativity: Defined as the strength of the attraction that an atom has for valence electrons, elements in the upper right hand corner of the periodic table have a higher electronegativity that other elements. (except for the noble gases)
Here's why:
The elements on the right side of the periodic table have more electrons in their outer level. The noble gases have 8, which is the most possible under normal and most circumstances. The halogens, group 7A, have 7 electrons. There is this thing in chemistry called the octet rule. The octet rule says that atoms will constantly be trying to have an electron configuration like that of a noble gas. In other words, atoms always are trying to get 8 valence electrons.
Because elements on the right side have more electrons(halogens have 7, the group to their left has 6, etc.) that are closer to 8, they are constantly trying to get one or two more electrons, however many they need to complete their outer level.
The halogens, like chlorine, flourine, and bromine, are almost never found in their free states because they are constantly gaining an extra electron, resulting in the negative ion.
Yeah, so that's why the elements on the right side have such strong attractions for electrons.
Here's why:
The elements on the right side of the periodic table have more electrons in their outer level. The noble gases have 8, which is the most possible under normal and most circumstances. The halogens, group 7A, have 7 electrons. There is this thing in chemistry called the octet rule. The octet rule says that atoms will constantly be trying to have an electron configuration like that of a noble gas. In other words, atoms always are trying to get 8 valence electrons.
Because elements on the right side have more electrons(halogens have 7, the group to their left has 6, etc.) that are closer to 8, they are constantly trying to get one or two more electrons, however many they need to complete their outer level.
The halogens, like chlorine, flourine, and bromine, are almost never found in their free states because they are constantly gaining an extra electron, resulting in the negative ion.
Yeah, so that's why the elements on the right side have such strong attractions for electrons.
I wrote all that^^ without looking at notes or anything.

I would like to hear your thoughts on this:
Which of these classes should I take?
- AP Government and Politics(US)
- AP United States History
- AP European History
- AP World History
Mandlebrot was today. I thought it was going to be next week.
sigh*
I got the first problem right, and the last problem right.
sigh*
I might have gotten the second one right, but I'm not sure.
I wasted all my time trying to check the last one. In case you're wondering, I didn't even finish checking it. There were huge fractions squared and all that. My arithmetic used to be pretty fast(ok you might consider it still pretty fast, but even multiplying two 3-digit numbers in like 5.5 seconds isn't fast enough for this(
I checked it when I got home with my calculator.
If I'm lucky, I will have guessed the second to last problem correctly.
But probably not.
Oh I'm almost done with the new Best Songs Ever CD.
There is/was an interesting(ok maybe not) thread in the Round Table about the existence of God, and I think I'll share some thoughts about it later.
btw, the Book of Mormon is flawed.
In the meantime, ponder this problem:
Find all solutions to

This post has been edited 3 times. Last edited by EpicSkills32, Jan 11, 2014, 6:10 AM