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C2,7HW1a - (cm Enter your answer in the form 1.02E12 for...

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Title: C2,7HW1a Started: September 7, 2011 12:28 PM Submitted: September 7, 2011 1:22 PM Time spent: 00:53:51 Total score: 5/10 = 50% Total score adjusted by 0.0 Maximum possible score: 10 1. An iron-56 nucleus contains Student Response A.56 protons and 26 neutrons. B.30 protons and 26 neutrons. C.26 protons and 26 neutrons. D.56 protons and 56 neutrons. E.26 protons and 30 neutrons. Score: 1/1 2. What is the sum of the numbers of neutrons and electrons in the Student Response Answer: 78 Score: 0/1 3. Lithium exists as two isotopes: 6 Li with a mass of 6.01512 u an and 7 Li with a mass of 7.01600 u and an abundance of 92.58%. weight of lithium as it appear in the periodic table. Student Response A.6.06
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Student Response B.7.02 C.7.42 D.6.94 E.6.02 Score: 1/1 4. H is the symbol for hydrogen and Cl is the symbol for chlorine. element with the symbol Mn. Student Response 1. Manganese Score: 1/1 5. A infrared photon has a frequency of 1,991 GHz. What is its wa
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Unformatted text preview: (cm)? Enter your answer in the form 1.02E12 for 1.02 x 10 figures. Do not enter units with your answer. Student Response Answer: .00065 Score: 0/1 6. If the energy of a photon is 1.32 × 10-18 J, what is its wavelengt Student Response 1.1.50 × 10-7 Student Response 2.150. 3.1.99 × 10 15 4.1.99 × 10 24 5.None of the above Score: 0/1 7. Calculate the energy change in J when an electron moves from level 3 in the hydrogen atom. Student Response A.1.96 x B.-4.84 x C.2.99 x D.-2.15 x E.2.15 x Score: 0/1 8. What is the lowest-numbered principal shell in which Student Response A.1 B.2 C.3 D.4 E.5 Score: 1/1 9. Give the number of orbitals for the following sublevel: 4 s Student Response A.1 B.4 C.2 D.5 E.none of these Score: 1/1 10. Which orbital is shown in the figure below? Student Response A. p x B. d xy C. s D. p z E. p xy Score: 0/1...
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