Introductory Chemistry (6th Edition)
6th Edition
ISBN: 9780134302386
Author: Nivaldo J. Tro
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 9, Problem 9E
Why should excess exposure to ultraviolet light be avoided?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Chapter 9 Solutions
Introductory Chemistry (6th Edition)
Ch. 9 - Q1. Which set of wavelengths for light are...Ch. 9 - Which of the listed types of electromagnetic...Ch. 9 - Q3. Which electron transition in the Bohr model...Ch. 9 - What is the electron configuration of arsenic...Ch. 9 - Which orbital diagram corresponds to phosphorus...Ch. 9 - Q6. How many valence electrons does tellurium (Te)...Ch. 9 - Q7. The element sulfur forms an ion with what...Ch. 9 - Order the elements Sr, Ca, and Se in order of...Ch. 9 - Which of the listed elements has the highest...Ch. 9 - Q10. Which of the listed elements is most...
Ch. 9 - Which property decreases as you move down a column...Ch. 9 - Q12. When aluminum forms an ion, it loses...Ch. 9 - 1. When were the Bohr model the quantum-mechanical...Ch. 9 - 2. What is light? How fast does light travel?
Ch. 9 - 3. What is white light? Colored light?
Ch. 9 - Explain in terms of absorbed and reflected light,...Ch. 9 - What is the relationship between the wavelength of...Ch. 9 - 6. List some sources of gamma rays.
Ch. 9 - How are X-rays used?Ch. 9 - Why should excess exposure to gamma rays and...Ch. 9 - Why should excess exposure to ultraviolet light be...Ch. 9 - What objects emit infrared light? What technology...Ch. 9 - Why do microwave ovens heat food but tend not to...Ch. 9 - 12 .What type of electromagnetic radiation is used...Ch. 9 - Describe the Bohr model for the hydrogen atom.Ch. 9 - 14. What is an emission spectrum? Use the Bohr...Ch. 9 - 15. Explain the difference between a Bohr orbit...Ch. 9 - 16. What is the difference between the ground...Ch. 9 - 17. Explain how the motion of an electron is...Ch. 9 - 18. Why do quantum-mechanical orbital have “fuzzy”...Ch. 9 - 19. List the four possible subshells in the...Ch. 9 - 20. List the quantum-mechanical orbitals through...Ch. 9 - Prob. 21ECh. 9 - Prob. 22ECh. 9 - Within an electron configuration. What do symbols...Ch. 9 - Explain the difference between valence electrons...Ch. 9 - Identify each block in the blank periodic table....Ch. 9 - Prob. 26ECh. 9 - Prob. 27ECh. 9 - Prob. 28ECh. 9 - Prob. 29ECh. 9 - How far does light travel in each time period? a....Ch. 9 - 31. Which type of electromagnetic radiation has...Ch. 9 - 32. Which type of electromagnetic radiation has...Ch. 9 - List the types of electromagnetic radiation in...Ch. 9 - List the types of electromagnetic radiation in...Ch. 9 - List two types of electromagnetic radiation with...Ch. 9 - List two types of electromagnetic radiation with...Ch. 9 - List these three types of radiationinfrared,...Ch. 9 - List these three types of electromagnetic...Ch. 9 - Prob. 39ECh. 9 - 40. In the Bohr model, what happens when an...Ch. 9 - 41. Two of the emission wavelengths in the...Ch. 9 - 42. Two of the emission wavelengths in the...Ch. 9 - 43. Sketch the 1s and 2p orbitals. How do the 2s...Ch. 9 - Sketch the 3d orbitals. How do the 4d orbitals...Ch. 9 - Which electron is, on average closer to the...Ch. 9 - 46. Which electron is, on average, farther from...Ch. 9 - 47. According to the quantum-mechanical model for...Ch. 9 - Prob. 48ECh. 9 - 49. Write full electron configuration for each...Ch. 9 - 50. Write full electron configurations for each...Ch. 9 - 51. Write full orbital diagrams and indicate the...Ch. 9 - Write full orbital diagrams and indicate the...Ch. 9 - Write electron configurations for each element....Ch. 9 - Write electron configurations for each element....Ch. 9 - Prob. 55ECh. 9 - Prob. 56ECh. 9 - Write full electron configurations and indicate...Ch. 9 - 58. Write full electron configurations and...Ch. 9 - Write orbital diagrams for the valence electrons...Ch. 9 - 60. Write orbital diagrams for the valence...Ch. 9 - How many valence electrons are in each element? a....Ch. 9 - 62. How many valence electrons are in each...Ch. 9 - 63. List the outer electron configuration for each...Ch. 9 - Prob. 64ECh. 9 - Prob. 65ECh. 9 - Use the periodic table to write electron...Ch. 9 - Use the periodic table to write electron...Ch. 9 - 68. Use the periodic table to write electron...Ch. 9 - Prob. 69ECh. 9 - How many 3d electrons are in an atom of each...Ch. 9 - Prob. 71ECh. 9 - Prob. 72ECh. 9 - Name the element in the third period (row) of the...Ch. 9 - 74. Name the element in the fourth period of the...Ch. 9 - 75. Use the periodic table to identify the element...Ch. 9 - 76. Use the periodic table to identify the element...Ch. 9 - 77. Choose the element with the higher ionization...Ch. 9 - Choose the element with the higher ionization...Ch. 9 - Arrange the elements in order of increasing...Ch. 9 - 80. Arrange the elements in order of increasing...Ch. 9 - 81. Choose the element with the larger atoms from...Ch. 9 - Choose the element with the larger atoms from each...Ch. 9 - Prob. 83ECh. 9 - Prob. 84ECh. 9 - 85. Choose the more metallic element from each...Ch. 9 - Choose the more metallic element from each pair....Ch. 9 - 87. Arrange these elements in order of increasing...Ch. 9 - Arrange these elements in order of increasing...Ch. 9 - What is the maximum number of electrons that can...Ch. 9 - 90. What is the maximum number of electrons that...Ch. 9 - Use the electron configurations of the alkaline...Ch. 9 - Prob. 92ECh. 9 - Write the electron configuration for each ion....Ch. 9 - Write the electron configuration for each ion....Ch. 9 - Prob. 95ECh. 9 - 96. Examine Figure 4.14, which shows the elements...Ch. 9 - Prob. 97ECh. 9 - Identify what is wrong with each electron...Ch. 9 - Prob. 99ECh. 9 - Prob. 100ECh. 9 - Prob. 101ECh. 9 - Based on periodic trends, which one of these...Ch. 9 - When an electron makes a transition from n=3 to...Ch. 9 - Prob. 104ECh. 9 - The distance from the sun to Earth is 1.496108 km....Ch. 9 - Prob. 106ECh. 9 - 107. The wave nature of matter was first proposed...Ch. 9 - 108. The particle nature of light was first...Ch. 9 - Prob. 109ECh. 9 - When atoms lose more than one electron, the...Ch. 9 - 111. Excessive exposure to sunlight increases the...Ch. 9 - 112. The quantum-mechanical model, besides...Ch. 9 - Prob. 113QGWCh. 9 - 116. Using grammatically correct sentences,...Ch. 9 - 117. The first graph shown here is of the first...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- Sunburn is caused by ultraviolet UV radiation. Why does red light not cause sunburn?arrow_forwardWhat prevents large amounts of high-energy UV and X-ray light from reaching Earths surface, where it can adversely affect humans?arrow_forwardHow does the energy possessed by an emitted photon compare to the difference in energy levels that gave rise to the emission of the photon?arrow_forward
- Arrange the kinds of light listed below in order of increasing wavelength: Red visible light, blue visible light, infrared light, and X-rays X-ray blue visible red visible infrared infrared red visible blue visible X-ray blue visible red visible X-ray infraredarrow_forwardMars is roughly 60 million km from the earth. How long does it take for a radio signal originating from the earth to reach Mars?arrow_forwarddescribe waves in terms of frequency, wavelength, and amplitude.arrow_forward
- Give a brief wave description of light. What are two characteristics of light waves?arrow_forwardArrange the following three frequencies of light in order of increasing energy per photon: a.100MHzb.10MHzc.100GHzarrow_forwardAnswer the following questions about a Blu-ray laser: (a) The laser on a Blu-ray player has a wavelength of 405 nm. In what region of the electromagnetic spectrum is this radiation? What is its frequency? (b) A Blu-ray laser has a power of 5 millwatts (1watt=1Js1). How many photons of light are produced by the laser in 1 hour? (c) The ideal resolution of a player using a laser (such as a Blu-ray player), which determines how close together data can be stored on a compact disk, is determined using the following formula: Resolution =0.60(/NA), where A is the wavelength of the laser and NA is the numerical aperture. Numerical aperture is a measure of the size of the spot of light on the disk; the larger the NA, the smaller the spot. In a typical Blu-ray system, NA = 0.95. If the 405-nm laser is used in a Blu-ray player, what is the closest that information can be stored on a Blu-ray disk? (d) The data density of a Blu-ray disk using a 405-nm laser is 1.5107 bits mm2. Disks have an outside diameter of 120 mm and a hole of 15-mm diameter. How many data bits can be contained on the disk? If a Blu-ray disk can hold 9,400,000 pages of text, how many data bits are needed for a typed page? (Hint: Determine the area of the disk that is available to hold data. The area inside a circle is given by A=r2, where the radius r is one-half of the diameter.)arrow_forward
- he “Chemistry in Focus" segment Light as a Sex Attractant discusses fluorescence. In fluorescence, ultraviolet radiation is absorbed and intense white visible light is emitted. Is ultraviolet radiation a higher or a lower energy radiation than visible light?arrow_forwardWhen a tube containing hydrogen atoms is energized by passing several thousand volts of electricity into the tube, the hydrogen emits light than when passed through a prism, resolves into the "bright line" spectrum shown in Fig. 11.10. Why do hydrogen atoms emit bright lines of specific wavelengths rather than a continuous spectrum?arrow_forwardFour types of electromagnetic radiation (EMR) are ultraviolet, microwaves, gamma rays, and visible. All of these types of EMR can be characterized by wavelength, frequency, photon energy, and speed of travel. Define these terms and rank the four types of electromagnetic radiation in order of increasing wavelength, frequency, photon energy, and speed.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
General Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning
Chemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub Co
Physical ChemistryChemistryISBN:9781133958437Author:Ball, David W. (david Warren), BAER, TomasPublisher:Wadsworth Cengage Learning,
Chemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning
General Chemistry - Standalone book (MindTap Cour...
Chemistry
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Cengage Learning
Chemistry: Matter and Change
Chemistry
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Glencoe/McGraw-Hill School Pub Co
Physical Chemistry
Chemistry
ISBN:9781133958437
Author:Ball, David W. (david Warren), BAER, Tomas
Publisher:Wadsworth Cengage Learning,
Chemistry for Engineering Students
Chemistry
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Cengage Learning
Quantum Mechanics - Part 1: Crash Course Physics #43; Author: CrashCourse;https://www.youtube.com/watch?v=7kb1VT0J3DE;License: Standard YouTube License, CC-BY