WA08_CHE-121 - Name Vaughn Copeland College ID 0562024 Thomas Edison State University General Chemistry I with Labs(CHE-121 Section no Module 7 Semester

WA08_CHE-121 - Name Vaughn Copeland College ID 0562024...

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Name: Vaughn CopelandCollege ID: 0562024Thomas Edison State UniversityGeneral Chemistry I with Labs (CHE-121)Section no.: Module 7Semester and year:03-16Written Assignment 8: The Electronic Structure of AtomsAnswer all assigned questions and problems, and show all work. 1.The blue color of the sky results from the scattering of sunlight by air molecules. The blue light has a frequency of about 7.5 × 1014Hz.(a) Calculate the wavelength, in nm, associated with this radiation, and (b) calculate the energy, in joules, of a single photon associated with this frequency. (8 points)a.2.998x10^8/7.5x10^14 x1nm/10^-9=4.0x10^2b.6.626x10^-34x7.5x10^14=5.0x10^-19J(Reference: Chang 7.16)2. (a) What is an energy level? Explain the difference between ground state and excited state. (b) What are emission spectra: How do line spectra differ from continuous spectra? (6 points)a. Exact amount of energy an electron can have. Ground state, all electrons are at the lowest level. Excited state, the highest energy electron promote to a higher levelb. A spectrum of the electromagnetic radiation emitted by a source. A continuous spectrais continuous and a line spectra is not.(Reference: Chang 7.23)3.Explain the statement, Matter and radiation have “dual nature.” (3 points)4.Which of the four quantum numbers (n, ℓ, m, ms) determine (a) the energy of an electron in a hydrogen atom and in a many-electron atom, (b) the size of an orbital, (c) the shape of an orbital, (d) the orientation of an orbital in space. (4 points)1
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