Sunday, March 6, 2016

Unit Exam

I am fairly confident that I did well on this exam. This unit came easier to me than others, and I put a lot of work into understanding the concepts. The biggest challenge was remembering all of the little details that are the difference between getting a question right and not getting it right, such as the conversions or exceptions. I took my time and made sure that I understood the questions, and I think that this paid off because Frank warned us that the biggest grade killer was reading the question wrong. Hopefully I did as well as I'm anticipating; my grade really needs it!!!!

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Wavelength, Frequency, and Energy Calculations

This was the only math portion of this unit. Within it, there are 3 equations that helped us calculate wavelength, energy, and frequency. It took some time to get the hang of it because we had to remember things such as Planck's constant and multiplying by Avogadro's number when calculation moles/photon, but once it was practiced a lot, it became second nature. I studied this a lot for the quiz and got all of the problems right, and by the time the exam rolled around, I barely had to touch up on it to remember. This is probably one of my favorite math concept that we have done in this class!

http://www.chemteam.info/Electrons/calc-energy-freq-wavelength.html
http://www.kentchemistry.com/links/AtomicStructure/waveequations.htm




Electron Configuration

This topic was probably the easiest to grasp for me. You just have to remember the four subshells and their locations (Smart People Drop First semester), and then you are able to formulate a configuration for an element. It is essentially their address, and it leads you to where they are located. It was fairly easy to make a configuration for an element as well as locate an element from a given configuration. There are 6 exceptions that we were accountable for, and they weren't difficult to remember either.



Periodic Trends

This lesson was one that took extra work in order to memorize and utilize accurately. Since there are several, remembering which way the trends go on the periodic table for all is crucial. I'll admit that I did not take the time to figure out what each means necessarily, I just made sure I remembered the direction of each.

http://chemwiki.ucdavis.edu/Core/Inorganic_Chemistry/Descriptive_Chemistry/Periodic_Trends_of_Elemental_Properties/Periodic_Trends
https://www.khanacademy.org/science/chemistry/periodic-table/periodic-table-trends-bonding

Quantum Numbers

Quantum numbers are a fairly easy concept to get. There isn't application, but it is simply memorization of what the four numbers mean and knowing how to locate elements from a set of numbers.

http://chemed.chem.purdue.edu/genchem/topicreview/bp/ch6/quantum.html
https://www.khanacademy.org/science/chemistry/electronic-structure-of-atoms/orbitals-and-electrons/v/quantum-numbers

These are two sources that I found helpful in putting this concept into perspective.