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Exam samples Example-1 1. The wavelength of electromagnetic energy multiplied by its frequency equals: a. c, the speed of light b. h, Planck’s constant c. Avogadro’s number d. 4.184 2. The energy of a photon of electromagnetic energy divided by its frequency equals: a. c, the speed of light b. h, Planck’s constant c. Avogadro’s number d. 4.184 3. Light that contains colors of all wavelengths is called: a. b. c. d. a continuous spectrum. monochromatic. a line spectrum. a Balmer series. 4. The lowest energy state of an atom is referred to as its: a. bottom state. b. ground state. c. fundamental state. d. original state. 5. The hydrogen emission spectrum includes light with a wavelength of 434 nanometers. This is caused by an electron moving from: a. the n = 3 state to the n = 2 state. b. the n = 4 state to the n = 2 state. c. the n = 5 state to the n = 2 state. d. the n = 6 state to the n = 2 state. 6. “It is impossible to know both the position and the momentum of an electron simultaneously” is a statement of: a. Hund’s Rule. b. deBroglie’s Hypothesis. c. the Pauli Exclusion Principle. d. the Heisenberg Uncertainty Principle. 7. “No two electrons in the same atom may have the same values for all four quantum numbers” is a statement of: a. Hund’s Rule. b. deBroglie’s Hypothesis. c. the Pauli Exclusion Principle. d. the Heisenberg Uncertainty Principle. 8. All s orbitals are: a. shaped like four-leaf clovers. b. dumbbell-shaped. c. spherical. d. triangular. 9. The way electrons are distributed among the various orbitals of an atom is referred to as the atom’s: a. orbital diagram. b. electron configuration. c. electron distribution. d. electron spread 10. [He]2s22p2 is the electron configuration of which element? a. beryllium b. boron c. carbon d. nitrogen