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Jeopardy Jeopardy PHY101 Chapter 10 Review Study of Atomic Physics Cheryl Dellai.

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Presentation on theme: "Jeopardy Jeopardy PHY101 Chapter 10 Review Study of Atomic Physics Cheryl Dellai."— Presentation transcript:

1 Jeopardy Jeopardy PHY101 Chapter 10 Review Study of Atomic Physics Cheryl Dellai

2 Study of Atomic Physics Photons Photoelectric Effect Spectrum Bohr Atom Principles Potpourri $100 $200 $300 $400

3 Photons $100 What is an electron volt? ANSWER

4 Photons $200 What is a photon?

5 ANSWER Photons $300 What is the energy of a photon?

6 ANSWER Photons $400 An excited atom can lose energy by emitting a __________.

7 Photoelectric Effect $100 ANSWER The __________ occurs when electrons are emitted when light strikes the surface of a metal.

8 ANSWER An atom is said to have been ________ when it absorbs a photon with sufficient energy to free an electron. Photoelectric Effect $200

9 ANSWER Photoelectric Effect $300 When the intensity of light is increased in a photoelectric effect experiment, the energy of the emitted electrons __________.

10 Photoelectric Effect $400 ANSWER When the frequency of the light is increased in a photoelectric effect experiment, the energy of the emitted electrons __________.

11 Spectrum $100 ANSWER When something is restricted to having only certain numerical values, it is said to be __________.

12 Spectrum $200 ANSWER What is a spectrum?

13 Spectrum $300 ANSWER What is an emission spectrum?

14 Spectrum $400 ANSWER A hot luminous solid emits a __________ spectrum, while a hot luminous gas produces a __________ spectrum.

15 Bohr Atom $100 ANSWER Two things that are quantized in the Bohr model of the hydrogen atom are __________ and __________.

16 Bohr Atom $200 ANSWER The lowest energy level in an atom is its __________.

17 Bohr Atom $300 ANSWER What is the formula for the energy levels?

18 Bohr Atom $400 ANSWER In an energy level transition from the n = 2 state to the n =1 state for a hydrogen atom a photon will be ___________.

19 Principles $100 ANSWER The __________ states that a particle cannot be precisely localized.

20 Principles $200 ANSWER What is the de Broglie wavelength ?

21 Principles $300 ANSWER What is the Pauli Exclusion Principle?

22 Principles $400 ANSWER Two devices that make use of the wavelike nature of electrons are the __________ and the __________.

23 Potpourri $100 ANSWER The person who first explained the photoelectric effect was __________.

24 Potpourri $200 ANSWER Laser light is _____________ & _______________.

25 Potpourri $300 ANSWER Four different uses of lasers are

26 Potpourri $400 ANSWER __________ in an x ray spectrum of an atom occurs because of rapid deceleration of the bombarding electrons.

27 Photons $100 Answer Back to Jeopardy What is an electron volt? One electron through 1 volt of potential difference 1 eV = 1.6 *10 -19 J

28 Photons $200 Answer Back to Jeopardy What is a photon? A photon is a wave packet of light.

29 Photons $300 Answer Back to Jeopardy What is the energy of a photon? Energy = hf Planck’s Constant h = 6.63*10 -34 J*s = 4.14 *10 -15 eV*s

30 Photons $400 Answer Back to Jeopardy An excited atom can lose energy by emitting a photon.

31 Photoelectric Effect $100 Answer Back to Jeopardy The Photoelectric Effect occurs when electrons are emitted when light strikes the surface of a metal.

32 Photoelectric Effect $200 Answer Back to Jeopardy An atom is said to have been ionized when it absorbs a photon with sufficient energy to free an electron.

33 Photoelectric Effect $300 Answer Back to Jeopardy When the intensity of light is increased in a photoelectric effect experiment, the energy of the emitted electrons stays the same.

34 Photoelectric Effect $400 Answer Back to Jeopardy When the frequency of the light is increased in a photoelectric effect experiment, the energy of the emitted electrons increases.

35 Spectrum $100 Answer Back to Jeopardy When something is restricted to having only certain numerical values, it is said to be quantized.

36 Spectrum $200 Answer Back to Jeopardy What is a spectrum? A continuous band of colors of the rainbow ROYGBIV. Each color blends into the next.

37 Spectrum $300 Answer Back to Jeopardy What is an emission spectrum? Colored Lines on a black background.

38 Spectrum $400 Answer Back to Jeopardy A hot luminous solid emits a continuous spectrum, while a hot luminous gas produces a line spectrum.

39 Bohr Atom $100 Answer Back to Jeopardy Two things that are quantized in the Bohr model of the hydrogen atom are energy and angular momentum.

40 Bohr Atom $200 Answer Back to Jeopardy The lowest energy level in an atom is its ground state. For Hydrogen E+ = -13.6 eV The highest energy level in an atom corresponds to n = infinity

41 Bohr Atom $300 Answer Back to Jeopardy What is the formula for the energy levels? E n = E Ground state /n² n = principal quantum #

42 Bohr Atom $400 Answer Back to Jeopardy In an energy level transition from the n = 2 state to the n =1 state for a hydrogen atom a photon will be emitted.

43 Principles $100 Answer Back to Jeopardy The Uncertainty Principle states that a particle cannot be precisely localized.  x  p  h or  E  t  h

44 Principles $200 Answer Back to Jeopardy What is the de Broglie wavelength? = h/(mv)

45 Principles $300 Answer Back to Jeopardy What is the Pauli Exclusion Principle? No two electrons can occupy the same quantum state at the same time. # of states = 2n²

46 Principles $400 Answer Back to Jeopardy Two devices that make use of the wavelike nature of electrons are the electron microscope and the scanning tunneling microscope (STM)

47 Potpourri $100 Answer Back to Jeopardy The person who first explained the photoelectric effect was Albert Einstein.

48 Potpourri $200 Answer Back to Jeopardy Laser light is monochromatic & coherent.

49 Potpourri $300 Answer Back to Jeopardy Principle uses of lasers are 1.to produce holograms, 2.for surgery, 3.to measure accurately distances between objects, 4.in DVD and compact disc players, to cut metals, 5.to induce nuclear fusion reactions, 6.to transmit telephone information along optical fibers, 7.in checkout counter price scanners.

50 Potpourri $400 Answer Back to Jeopardy A continuous variation in an x ray spectrum of an atom occurs because of rapid deceleration of the bombarding electrons.

51 Thank You for playing Study of Atomic Physics Jeopardy!


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