Exam 1 1311 qs - Exam 1 1311 F10 Key version A 1 Which of...

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Exam 1 1311 F10 Key version A 1. Which of the following statements is TRUE concerning d orbitals? A. Each one is spherical in shape. B. All of the other answers are false. C. They all have two lobes and are “dumbbell” shaped. D. There are three of them for a given n value. E. A 3 d orbital is smaller than a 5 d orbital _______________________________________________________________________________________________________ _______ 2. Identify the element of Period 2 which has the following successive ionization energies, in kJ/mol. _______________________________________________________________________________________________________ _______ 3. Which of these elements has the greatest electron affinity? _______________________________________________________________________________________________________ _______ 4. The electron configuration of a cobalt(III) ion is _______________________________________________________________________________________________________ _______ 5. In what group of the periodic table is the element with the electron configuration [Ar]4s 2 3d 10 4p 3 ? A. 3A B. 1A C. 5A D. 2A E. 4A _______________________________________________________________________________________________________ _______ 6. Calculate the wavelength of a neutron that has a velocity of 2.00 m s –1 . (The mass of a neutron = 1.675 10 27 kg).
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_______________________________________________________________________________________________________ _______ 7. Consider the element with the electron configuration [Rn]7s 2 5f 7 . This element is _______________________________________________________________________________________________________ _______ 8. Calculate the frequency of the light emitted by a hydrogen atom during a transition of its electron from the n = 4 to the n = 1 principal energy level. _______________________________________________________________________________________________________ _______
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