110Sp09ex1 A - CHEMISTRY 110 EXAM 1 FEBRUARY 9 2009 FORM...

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CHEMISTRY 110 EXAM 1 FEBRUARY 9, 2009 FORM A ------------------------------------------------------------------------------------------------------------ 1. Which of the following has the longest wavelength? A. x-rays B. visible light C. radio waves D. ultraviolet radiation E. infrared light ------------------------------------------------------------------------------------------------------------ 2. Which of the following represents the orbital that has an unpaired electron in a ground state Fe atom? ----------------------------------------------------------------------------------------------------------- 3. Which element is the least electronegative? ------------------------------------------------------------------------------------------------------------ 4. The formula of magnesium bromide is ___________. ------------------------------------------------------------------------------------------------------------
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------------------------------------------------------------------------------------------------------------ 5. Which one of the following atoms has an electron with the following quantum numbers when it is in its ground state? n = 2, = 1, m = 1, m s = – ½ A. Li B. He C. Be D. C E. H ------------------------------------------------------------------------------------------------------------ 6. The density of nickel is 8.90 g/cm 3 . What is the mass of a cube of nickel that is 5.00 cm on each side? ------------------------------------------------------------------------------------------------------------ 7. An electron in which subshell of bromine would experience the greatest effective nuclear charge? ------------------------------------------------------------------------------------------------------------ 8. Which of the following pairs are isotopes of each other? ------------------------------------------------------------------------------------------------------------
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------------------------------------------------------------------------------------------------------------ 9. Which of the following electron diagrams represent the correct ground state for Si?
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