# reader9 - Chapter 8 Electrons in Atoms 1 4 5 11 15 19 22 25...

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Chapter 8: Electrons in Atoms 1, 4, 5, 11, 15, 19, 22, 25, 29, 39, 40, 50, 51, 57, 58, 59, 60, 71, 75, 82, 85 – 88, 101 , 123, 124, 126 Electromagnetic Radiation 1.” A hypothetical electromagnetic wave is pictured here. What is the wavelength of this radiation? 4.” The most intense line in the cerium spectrum is at 418.7 nm. (a) Determine the frequency of the radiation producing this line. (b) In what part of the electromagnetic spectrum does this line occur? (c) Is it visible to the eye? If so, what color is it? If not, is this line at higher or lower energy than visible light? 5.” Without doing detailed calculations , determine which of the following wavelengths represents light of the highest frequency: (a) (b) 1.13 mm; (c) 860 Å; (d)

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Chapter 8 2 Atomic Spectra 11.” Use Planck's equation (8.3) to determine (a) the energy, in joules per photon, of radiation of frequency (b) the energy, in kilojoules per mole, of radiation of frequency 15.” Calculate the wavelengths, in nanometers, of the first four lines of the Balmer series of the hydrogen spectrum, starting with the longest wavelength component. Quantum Theory 19.” A certain radiation has a wavelength of 474 nm. What is the energy, in joules, of (a) one photon; (b) a mole of photons of this radiation?
Chapter 8 3 22.” Without doing detailed calculations , arrange the following forms of electromagnetic radiation in increasing order of energy per mole of photons:

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reader9 - Chapter 8 Electrons in Atoms 1 4 5 11 15 19 22 25...

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