Beginning of Unit

Recently, we started a new unit concerning more directly of the periodic table and looking at trends and properties of elements and different ways to write them. The first lesson was on wavelengths, frequencies, and energy. First, we looked at what a wavelength looks like, and the different parts of it. Here is what that looks like:

http://images.tutorvista.com/cms/images/83/wavelength-image.PNG

We then talked about the electromagnetic spectrum, and the electronic structure, which is the arrangement of electrons. We learned that visible light is a form of electromagnetic radiation, otherwise known as radiant energy, and the light that we see is connected with the wavelength of a number x 10^-7. An important thing to remember is that within visible light, violet has high energy and red has lower energy, and this corresponds with the frequency.

A long wavelength=low frequency=low energy

A short wavelength=high frequency=high energy

http://www.cyberphysics.co.uk/topics/radioact/Radio/EMSpectrumcolor.jpg

Here are some links to help practice and understand the concepts we covered:
http://www.chemteam.info/Electrons/calc-wavelength-given-freq.html
http://www.kentchemistry.com/links/AtomicStructure/waveequations.htm