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02.05 Electron Arrangement and EMR

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by

Tyler Brown

on 2 March 2014

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Transcript of 02.05 Electron Arrangement and EMR

02.05 Electron Arrangement and EMR
By: Tyler Brown

Part One (Flame Test):
1. Create and complete a data table for Part One of the lab. It should include the name of the element (or unknown) examined and the color of the observed flame
1. Identify each unknown from Part One of the lab and briefly explain why you identified each unknown as you did.
1. Explain, in your own words, why different elements produce different colors of light when heated.
1. The reason why different elements produce different colors of light when heated, is because there are many different amounts of electrons, and they all are enegized to a different degree. Electrons emit light due to the kinetic energy released when returning to their starting location, the properties that affect the color of the produced light is the distance and quantity of the electrons.
Part Two (Spectroscopy):
1. Create and complete a data table for Part Two of the lab. It should include the name of the element, the colors, and the wavelength values of the observed lines.
2. Describe the line spectrum of the star. Give the color and wavelength value of the five brightest lines in the spectrum.
3. What element do you think is the most abundant in the star that you observed in Part Two? Explain your answer.
Neon in my opinion, is the most abundant in the stars observed in Part two, for the reason that it contains every mutual color in the spectrum.
2. Why do you think elements must be heated before they emit colored light?
2. Electrons must be heated before they emit colored light for the reason that they can reach the outermost electron ring, resulting in reaching maximum potential energy
The First Unknown was Sodium, as the flames colors burned with the same flame as the sample Sodium. The Second Unknown is Potassium, the flames stayed consistent with the results of Potassium
The line spectrum of the star extends from colors purple (Purple being the first) to red (Reddest is the last) and many other star colors in the ling spectrum Wavelengths and colors of the Five brightest Lines were:
​1. Color = Purple, wavelength = 415 nm
​2. Color = Teal, wavelength = 490 nm
​3. Color = Green, wavelength = 550 nm
​4. Color = Yellow, wavelength = 585 nm
5. Color = Red, wavelength = 710 nm
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