Quiz 1C - Chem127 Dr.Abel Quiz1C 1(6 points Write the...

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Chem 127 Dr. Abel Quiz 1C 1. (6 points) Write the condensed electron configuration for the following (be careful, no partial credit): a. Phosphorous [Ne]3s 2 3p 3 b. Manganese [Ar]4s 2 3d 5 c. Tin [Kr]5s 2 4d 10 5p 2 2. Multiple Choice (4 points): Circle the best answer for each of the following (1 point each) A. All the following statements are correct except a. The Pauli Exclusion Principle states that each electron in an atom must have its own unique set of quantum numbers b. The Heisenberg Uncertainty Principle states that we cannot accurately determine both the position and speed of an electron in an atom c. The photoelectric effect shows that light behaves as a wave. d. De Broglie proposed that matter, like light, could have both wave and particle properties B. Which of the following transitions would emit a photon with the highest frequency ? a. n = 2 n = 3 b. n = 3 n = 1 c. n = 5 n = 6 d. n = 1 n = 3 C. The orientation in space of an atomic orbital is associated with
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Unformatted text preview: C. The orientation in space of an atomic orbital is associated with a. the spin quantum number m s b. the magnetic quantum number m l c. the angular momentum quantum number l d. the principal quantum number n D. Atomic orbitals developed using quantum mechanics a. describe exact paths for electron motion b. give a description of the atomic structure which is exactly the same as the Bohr model c. describe regions of space in which one is most likely to find an electron d. allow scientists to calculate an exact volume for the hydrogen atom Chem 127 Dr. Abel Quiz 1C 3. (5 points) Calculate the shortest wavelength photon emitted by the hydrogen atom in undergoing a transition from the n=5 level. Report your answer in nanometers. Shortest wavelength, highest change in energy, so n=5 to n=1 1/ λ = 1.097 x 10 7 (1/1 2 – 1/5 2 ) 1/ λ = 1.053 x 10 7 m-1 λ = 9.496 x 10-8 m 94.96 nm...
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  • Spring '08
  • Able
  • Electron, pH, Chem, Pauli exclusion principle, Dr.

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