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1. To say that light is quantized means that light is made up of, (elemental units) (waves) 2. Compared to photons of low-frequency light, photons of higher-frequency light have more (energy) (speed) (quanta) 3. The photoelectric effect supports the (wave model of light) (particle model of light)

1. To say that light is quantized means that light is made up of, (elemental units) (waves) 2. Compared to photons of low-frequency light, photons of higher-frequency light have more (energy) (speed) (quanta) 3. The photoelectric effect supports the (wave model of light) (particle model of light)

Inquiry into Physics
Inquiry into Physics
8th Edition
ISBN:9781337515863
Author:Ostdiek
Publisher:Ostdiek
Chapter10: Atomic Physics
Section: Chapter Questions
Problem 9Q
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Name Period Date Concept-Development Practice Page 38-1 The Atom and the Quantum 1. To say that light is quantized means that light is made up of (elemental units) (waves) 2. Compared to photons of low-frequency light, photons of higher-frequency light have more (energy) . (speed) (quanta) E=hf 14=3 3. The photoelectric effect supports the (wave model of light) (particle model of light) 4. The photoelectric effect is evident when light shone on certain photosensitive materials ejects (photons) (electrons) The photoelectric effect is more effective with violet light than with red light because the photons of violet light 5. (resonate with the atoms in the material) (deliver more energy to the material) (are more numerous) 6. According to De Broglie's wave model of matter, a beam of light and a beam of electrons (are fundamentally different) (are similar) 7. According to De Broglie, the greater the speed of an electron beam, the (greater is its wavelength) (shorter is its wavelength) 8. The discreteness of the energy levels of electrons about the atomic nucleus is best understood by considering the electron to be a (wave) (particle) 9. Heavier atoms are not appreciably larger in size than lighter atoms. The main reason for this is the greater nuclear charge (pulls surrounding electrons into tighter orbits) (holds more electrons about the atomic nucleus) (produces a denser atomic structure) 10. Whereas in the everyday macroworld the study of motion is called mechanics, in the microworld the study of quanta is called (Newtonian mechanics) (quantum mechanics) QuAvun 6 Conceptual PHYSICS A QUANTUM MECHANIC! ©Addison-Wesley Publishing Company, Inc. All rights reserved. Chápter 38 The Atom and the Quantum 139
Transcribed Image Text:Name Period Date Concept-Development Practice Page 38-1 The Atom and the Quantum 1. To say that light is quantized means that light is made up of (elemental units) (waves) 2. Compared to photons of low-frequency light, photons of higher-frequency light have more (energy) . (speed) (quanta) E=hf 14=3 3. The photoelectric effect supports the (wave model of light) (particle model of light) 4. The photoelectric effect is evident when light shone on certain photosensitive materials ejects (photons) (electrons) The photoelectric effect is more effective with violet light than with red light because the photons of violet light 5. (resonate with the atoms in the material) (deliver more energy to the material) (are more numerous) 6. According to De Broglie's wave model of matter, a beam of light and a beam of electrons (are fundamentally different) (are similar) 7. According to De Broglie, the greater the speed of an electron beam, the (greater is its wavelength) (shorter is its wavelength) 8. The discreteness of the energy levels of electrons about the atomic nucleus is best understood by considering the electron to be a (wave) (particle) 9. Heavier atoms are not appreciably larger in size than lighter atoms. The main reason for this is the greater nuclear charge (pulls surrounding electrons into tighter orbits) (holds more electrons about the atomic nucleus) (produces a denser atomic structure) 10. Whereas in the everyday macroworld the study of motion is called mechanics, in the microworld the study of quanta is called (Newtonian mechanics) (quantum mechanics) QuAvun 6 Conceptual PHYSICS A QUANTUM MECHANIC! ©Addison-Wesley Publishing Company, Inc. All rights reserved. Chápter 38 The Atom and the Quantum 139
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