State where in the periodic table these elements appear: (a) elements with the valence-shell electron configuration ns2np5 (b) elements that have three unpaired p electrons (c) an element whose valence electrons are 4s24p1 (d) the d-block elements [Section 6.9]
Label each of the following statements as true or false. c. X rays travel faster than microwaves.
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Verified Solution
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Key Concepts
Speed of Electromagnetic Waves
Electromagnetic Spectrum
True/False Statements in Science
Label each of the following statements as true or false. a. Visible light is a form of electromagnetic radiation.
Label each of the following statements as true or false. b. Ultraviolet light has longer wavelengths than visible light.
Label each of the following statements as true or false. a. The frequency of radiation increases as the wavelength increases. b. Electromagnetic radiation travels through a vacuum at a constant speed, regardless of wavelength. c. Infrared light has higher frequencies than visible light. d. The glow from a fireplace, the energy within a microwave oven, and a foghorn blast are all forms of electromagnetic radiation.
Arrange the following kinds of electromagnetic radiation in order of increasing wavelength: infrared light, green light, red light, radio waves, X rays, ultraviolet light.
(a) What is the frequency of radiation that has a wavelength of 10 µm, about the size of a bacterium?