Electronic Structure and Periodic Trends: TEST!

The test was taken, tears were shed. I wish that I had more time to study periodic trends. Maybe sooner, maybe later. My chem grade will update, but not with the A that I savor. Will update with more information as I receive it!

Electronic Structure and Periodic Trends: QUIZ!

This quiz was very easy for me and I hope it will signal a turning point for my chem grade. It's not as if my chem grade was in grave danger before this test, only that a nice boost was needed. This test mainly covered electron configuration and electron orbital rules. Hopefully this will be a good omen and the future lessons with be just as easily understood. For help on electron rules, click here.

Electronic Structure and Periodic Trends: Electron Configuration!

       

We learned about how to make and read electron configurations. The first number tells you the principal energy level, the letter that comes after tells you the sublevel, and the superscript tells the number of electrons. For example, 1S² is Helium.  If you need more help, you can click here! You can also make orbital level diagrams using this information. These can be useful to see if any of the 3 rules are being broken.

Electronic Structure and Periodic Trends: FLAME TEST LAB!

          This lab was tons of fun and I wish we could do this one again! It was very cool to watch the different colors of fire from the different metals tested. This taught us about wavelengths of light and how it effects the energy of the effected metal. We put this information into a chart and then we had to convert the wavelength of light to energy in J/MOL. This was arguably the least fun part of the lab, but that's okay because it was still cool to see how the information we collected turns into numbers that we can use! To figure wavelength based on color, click here!

Electronic Structure and Peroidic Trends: LIGHT!

This unit starts off with a lesson about light! We learned about the differences between frequency and wavelength and how that effects the energy. The higher the frequency, and the smaller the wavelength, the more energy a photon has! We also learned to rank energy of light based on its name. For example, we know that Gamma rays have more energy than x-rays have more energy than ultra-violet light. We also learned that in the visible spectrum violet light is stronger than red light. To add to the information, we also were given a formula to figure out how much energy a photon of light has. The formula to figure out Frequency = C/W, and the formula to figure out Wavelength is C/F. Once you find the missing number, you can plug it into the energy equation: E = 6.63e-34(F).

If you need help figuring out energy, take a look here!

New Unit! Electronic Structure and Periodic Trends!

Electronic Structure and Periodic Trends

We start this new unit off easy with an article and worksheet on fireworks. I'm not sure how this will tie into the unit, as mainly I am not quite sure what this unit is about. I am interested to find out more though. All I can hope for is that this is a easier unit that the Acids and Bases unit. I guess this is early reading for the unit: ChemWiki Periodic Trends