Chem 1211 Practice Exam 3

Chem 1211 Practice Exam 3 - Exam 3 1 Determine the...

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Exam 3 1. Determine the wavelength, in nm, of light that has a frequency of 4.11 x 10 15 s -1 . (80%) The wavelength of this light is: Shorter than visible light. Longer than visible light. In the same range as visible light. 2. A laser having a wavelength of 423 nm emits 8.68 x 10 20 photons per second. How much energy, in J, does this laser emit in 5.90 seconds? 3. How many protons are present in the nucleus of one atom or ion having the symbol 62 Zn 2+ ? How many neutrons are present in the species written above? How many electrons are present in the species written above? 4. Which electron transition is associated with the smallest emission of energy for the H atom? n=2 to n=1 n=2 to n=3 n=1 to n=2 n=3 to n=2 Calculate the wavelength, in angstroms , of the light associated with the transisiton of hydrogen's electron from n = 4 to n = 1.
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5. 6. Enter the correct chemical symbol of the element that has this electron configuration. Make sure that you capitalize the first letter of the symbol! [Ar] 4s 2 3d 10 4p 4
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7. What is the maximum number of electrons in an atom that can be described by the following quantum numbers? n = 4
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This note was uploaded on 03/17/2009 for the course CHEM 1211 taught by Professor Atwood during the Spring '07 term at UGA.

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Chem 1211 Practice Exam 3 - Exam 3 1 Determine the...

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