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TA Practice quiz

# TA Practice quiz - -16 m 2 7.92 × 10-9 m 3 1.65 × 10-15 m...

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CH301 Fall 2010 Practice Quiz—TA Style 1. Which of the following wavelengths would correspond to lowest energy electromagnetic radiation? 1. 1.56 km 2. 760 nm 3. 41.2 mm 4. 3.34 nm 5. 7.89 km 6. 98.4 m 2. Emission spectra are an example of the failure of classical mechanics because classical mechanics predicted ________ emission, but in fact ________ emission was experimentally observed. This results from the ________ of electrons’ energy levels. 1. continous, degenerate, proximity 2. degenerate, exponential, quantization 3. continuous, discrete, quantization 4. exponential, linear, degeneracy 5. discrete, continuous, linearity 3. What would be the approximate energy, in Joules, of a photon of wavelength 20 nm? 1. 10 -19 J 2. 10 -17 J 3. 10 -18 J 4. 10 -20 J 5. 10 -16 J 4. What is the minimum uncertainty in the position of an alpha particle (mass = 6.644 × 10 -27 kg) whose uncertainty in velocity is 10% of the speed of light? 1. 2.64 × 10

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Unformatted text preview: -16 m 2. 7.92 × 10-9 m 3. 1.65 × 10-15 m 4. 4.98 × 10-8 m 5. Which of the following is NOT a factor that determines the energy of the particle in a box? 1. the charge on the particle 2. the principal energy level 3. the length of the box 4. the mass of the particle 5. Planck’s constant 6. Which question below does the Schrodinger equation provide an answer to? I. What is the electron’s velocity? II. Where is the electron? III. What is the electron’s mass? 1. I, II & III 2. II & III 3. I & III 4. I & II 5. III 6. II 7. I 7. Consider the element zinc (Zn). If you were to add the values of m s for each of the 30 electrons in a zinc atom, what would be the sum? 1. +½ 2. -2½ 3. -½ 4. 0 5. +2½ 8. Aufbau, Hund and Pauli Which orbital filling rule can be read directly off of the periodic table? 1. the Pauli exclusion principle 2. the Aufbau principle 3. Hund’s rule 4. all of these 5. none of these...
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TA Practice quiz - -16 m 2 7.92 × 10-9 m 3 1.65 × 10-15 m...

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