Showing posts with label Electronic Structure. Show all posts
Showing posts with label Electronic Structure. Show all posts

Sunday, March 6, 2016

Web Resources for Electronic Structure Unit

Here are a few web resources for the Electronic structure unit. I know they are a little late for the unit test, but they did help me study. These could be helpful for the final.

1. Wavelength calculation practice - This link contains a couple practice problems relating to calculating wavelength or frequency. These problems are also in word problem format so they are useful for practicing for a test.
2. Electron Configuration lecture - If you are still a little confused about electron configuration, you need to watch this video.
3. Electron Configuration practice - This has very good electron configuration practice. I found these very useful.
4. Quantum Number lecture - I found this lecture very useful.
5. Quantum Number Exercise - This is a very interesting exercise. It isn't just regular practice problems. It is like a challenge.
6. Periodic Trend lecture - This video is by a college but it is still pretty good.

I won't say all of these are good links but most of them are good links. Be sure to look at some of these and you should be doing good in chemistry. If this can't help you, only God can help you.

Unit Test of Electronic Structure

This test was just, '..ehhh..'. I didn't really think it was that hard but at the same time I didn't think it was easy. The one thing that shocked me was the fact that this test was 50 questions long. I think that was the longest chemistry test ever. However, it didn't take much to answer each question. I did pretty good even though I had to stay to finish the test during the passing period. I feel pretty confident about this test. Even if I do screw up this test, I don't care. At this point in 3rd quarter, I am just done with school. My current goal for chemistry is being revised to achieving a 'B' instead of an 'A.' So whatever happens after this test, I'm cool with it. Only thing is that the tests are gonna go in after a long time. Since a lot of other people haven't taken this test, we need to wait for them to take it before putting it into the grade book.

Sunday, February 28, 2016

Weekly Quiz for Electronic Structure and Periodic Trends

This quiz actually went pretty well. I know I don't usually say that but I actually thought I did pretty good. I am saying this because I was able to successfully apply what I learned to the quiz. That doesn't usually happen. The quiz was 30 questions--the most we've ever had--but it went by smoothly without too much time. The hardest part about a test for me is time. If I don't get a question right away, I tend to stay on that question till I get it. This is why I take tests longer than normal people. However, on this test, I had time to triple check my answers. I just have to say I am looking forward to when the quizzes come back.

Quantum Numbers Lecture

This was one of the easiest lectures ever. I mean she told us that as we walked in but I didn't believe her right away. However, I found my answers after the 7 minute lecture. Yup, that's right. This lecture lasted 7 minutes. Quantum numbers is a little bit difficult to explain but it was basically what we learned before put into number format. No more no less. I just hope lectures continue to be this way. Cuz hope is all I got left.

Spectroscopic Analysis Lab

This lab was the most boring in the history of all labs. I think that pretty much summarized the whole lab. The name sounded a little bit cool but the lab itself was not cool. We had this tiny but big machine for this lab. All we had to do was turn knobs and to find the amount of light in each color of test tube. We had to be accurate so it was pretty hard. The hardest part about the lab was that we had to repeat this over 50 times. That was it. I know I may have exaggerated a little bit but that was pretty much it.



First lectures on Electronic Structure

My first impression on this unit was pretty good. This unit started off pretty easy. The first part of this unit involved using formulas to calculate certain things involving light energy. We learned two basic formulas for the speed of light (C = frequency x wavelength) and energy (Planck's constant x frequency). We basically apply these two formulas to solve for one of the variables. We also have different units so we need to use the conversion factor to make correct calculations. We also learned about how to locate the electrons in an atom. This was very confusing at first as I had no background knowledge to understand the lecture. I did however catch on to the lesson and found it to be fairly easy. I hope it stays that way.

Flame Test Lab

This lab was one of our more interesting labs. As the name suggests, we had fire during our experiment. This is why I enjoyed it. The purpose of the lab was to see the color of the flames produced when certain metals burned and to determine the identity of an unknown metal. It was pretty cool to see the different kinds of flame colors. This was one of the most colorful labs I have ever done. I thought we would have more fun with fire, but I guess it was fine just to see the different colors of the fire. I was a little nervous at first as I have a reputation of messing up labs. I usually screw up on every lab I do. Although, this lab was more successful than any other lab. It went pretty smoothly. I look forward to doing more labs like this one.