Chemistry: Principles and Reactions
8th Edition
ISBN: 9781305079373
Author: William L. Masterton, Cecile N. Hurley
Publisher: Cengage Learning
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Textbook Question
Chapter 6, Problem 7QAP
Lasers are now used for the total or partial removal of skin tattoos. A laser with a wavelenth of 755 nm is used to remove tattoos in green or blue inks.
(a) How much energy (in kJ/mol) is given off by the laser?
(b) Compare the energy obtained in (a) with that given off by an x-ray
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Chapter 6 Solutions
Chemistry: Principles and Reactions
Ch. 6 - A photon of violet light has a wavelength of 423...Ch. 6 - Most retinal tears and detachments are treated by...Ch. 6 - A line in the spectrum of neon has a wavelength of...Ch. 6 - Ozone absorbs energy with a frequency of 1.291015...Ch. 6 - The ionization energy of rubidium is 403 kJ/mol....Ch. 6 - Energy from radiation can cause chemical bonds to...Ch. 6 - Lasers are now used for the total or partial...Ch. 6 - Your instructor may use a laser pointer while...Ch. 6 - Consider the transition from the energy levels n=5...Ch. 6 - Consider the transition from the energy levels n=2...
Ch. 6 - According to the Bohr model, the radius of a...Ch. 6 - Calculate En for n=1,2,3, and 4 (R H=2.1801018J)....Ch. 6 - For the Pfund series, nlo=5. (a) Calculate the...Ch. 6 - In the Brackett series, nlo=4. (a) Calculate the...Ch. 6 - A line in the Lyman series (nlo=1) occurs at 97.23...Ch. 6 - In the Pfund series, nlo=5. Calculate the longest...Ch. 6 - What are the possible values for m l for (a) the d...Ch. 6 - What are the possible values for m l for (a) the d...Ch. 6 - For the following pairs of orbitals, indicate...Ch. 6 - For the following pairs of orbitals, indicate...Ch. 6 - What type of electron orbital (i.e., s, p, d, or...Ch. 6 - What type of electron orbital (i.e., s, p, d, or...Ch. 6 - What is the total electron capacity for (a)...Ch. 6 - Give the number of orbitals in (a) n=3(b) a 4p...Ch. 6 - How many electrons in an atom can following...Ch. 6 - How many electrons in an atom can have the...Ch. 6 - Given the following sets of quantum numbers,...Ch. 6 - Given the following sets of electron quantum...Ch. 6 - Write the ground state electron configuration for...Ch. 6 - Write the ground state electron configuration for...Ch. 6 - Write an abbreviated ground state electron...Ch. 6 - Prob. 32QAPCh. 6 - Give the symbol of the element of lowest atomic...Ch. 6 - Give the symbol of the element of lowest atomic...Ch. 6 - What fraction of the total number of electrons is...Ch. 6 - What fraction of the total number of electrons is...Ch. 6 - Which of the following electron configurations...Ch. 6 - Which of the following electron configurations...Ch. 6 - Write the orbital diagram for (a) Li(b) P(c) F(d)...Ch. 6 - Write the orbital diagram tor an atom of (a) Na...Ch. 6 - Give the symbol of the atom with the following...Ch. 6 - What is the symbol of the atom with the following...Ch. 6 - Write the symbol of (a) all the elements in which...Ch. 6 - Write the symbols of (a) all the elements in...Ch. 6 - How many unpaired electrons are there in an atom...Ch. 6 - How many unpaired electrons are there in the...Ch. 6 - In what main group(s) of the periodic table do...Ch. 6 - Give the symbol of the main-group metals in period...Ch. 6 - Write the ground state electron configuration for...Ch. 6 - Write the ground state electron configuration for...Ch. 6 - How many unpaired electrons are there 111 the...Ch. 6 - How many unpaired electrons are there in the...Ch. 6 - Arrange the elements Na, Si, and S in the order of...Ch. 6 - Arrange the elements Mg, S, and Cl in order of (a)...Ch. 6 - Which of the four atoms Rb, Sr, Sb, or Cs (a) has...Ch. 6 - Which of the four atoms Na, P, Cl, or K (a) has...Ch. 6 - Select the larger member of each pair. (a) Ca and...Ch. 6 - Select the smaller member of each pair. (a) P and...Ch. 6 - Prob. 59QAPCh. 6 - Prob. 60QAPCh. 6 - A lightbulb radiates 8.5% of the energy supplied...Ch. 6 - The speed of a computer chip is measured by its...Ch. 6 - A carbon dioxide laser produces radiation of...Ch. 6 - Name and give the symbol of the element that has...Ch. 6 - Compare the energies and frequencies of two...Ch. 6 - Consider the following transitions 1. n=3 to n=1...Ch. 6 - Write the symbol of each element described below....Ch. 6 - Answer the following questions. (a) What...Ch. 6 - Explain in your own words what is meant by (a) the...Ch. 6 - Explain the difference between (a) the Bohr model...Ch. 6 - Indicate whether each of the following statements...Ch. 6 - Criticize or comment on the following statements:...Ch. 6 - No currently known elements contain electrons in g...Ch. 6 - Prob. 74QAPCh. 6 - Explain why (a) negative ions are larger than...Ch. 6 - The energy of any one-electron species in its nth...Ch. 6 - In 1885, Johann Balmer, a mathematician, derived...Ch. 6 - Prob. 78QAPCh. 6 - Suppose that the spin quantum number could have...Ch. 6 - In the photoelectric effect, electrons are ejected...
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- This laser emits green light with a wavelength of 533 nm. (a) What is the energy, in joules, of one photon of light at this wavelength? (b) If a particular laser produces 1.00 watt (W) of power (1 W = 1 J/s), how many photons are produced each second by the laser?arrow_forwardA bright violet line occurs at 435.8 nm in the emission spectrum of mercury vapor. What amount of energy, in joules, must be released by an electron in a mercury atom to produce a photon of this light?arrow_forwardA hydrogen atom in the ground stale absorbs a photon whose wavelength is 95.0 nm. The resulting excited atom then emits a photon of 1282 nm. What are the regions of the electromagnetic spectrum for the radiations involved in these transitions? What is the principal quantum number of the final state resulting from the emission from the excited atom?arrow_forward
- Cesium was discovered in natural mineral waters in 1860 by R. W. Bunsen and G. R. Kirchhoff, using the spectroscope they invented in 1859. The name came from the Latin caesius ("sky blue") because of the prominent blue line observed for this element at 455.5 nm. Calculate the frequency and energy of a photon of this light.arrow_forwardLight with a wavelength of 405 nm fell on a strontium surface, and electrons were ejected. If the speed of an ejected electron is 3.36 105 m/s, what energy was expended in removing the electron from the metal? Express the answer in joules (per electron) and in kilojoules per mole (of electrons).arrow_forward6.96 When a helium atom absorbs light at 58.44 nm, an electron is promoted from the 1s orbital to a 2p orbital. Given that the ionization energy of (ground state) helium is 2372 kJ/ mol, find the longest wavelength of light that could eject an electron from the excited state helium atom.arrow_forward
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