For question 41 use the information that was given form question 40
Use the following information to answer the next question 37. A photon of blue light, with a momentum of 1.54 x 10-27 kg.m/s, has an energy, In an observation of the Compton effect, a photon is incident on a free electron. expressed in scientific notation, of a.b x 10" J. The values for a, b, c, and d are The scattered photon is detected, as illustrated below. The scattered electron is (Record your four digit answer) not shown. Before After Your answer: Stationary 36. A photon of wavelength 3.63 x 10-12 m strikes an electron and is scattered at an Path of free electron angle of 25.0. The wavelength of the scattered photon is incident photon 2 = 3.75 x 10 m 3.86 x 10-12 m 7.03 x 10-12 m Path of scattered photon pl = 1.67 x 1023 N . s 4.62 x 10-12 m E = 5.02 x 10-15 J 9.95 x 10-13 m 38. The velocity of the scattered electron is 39. Several scientists contributed important ideas in the evolution of atomic theories: 2.50 x 10% m/s [137'] Match each idea below to the corresponding scientist. 1.83 x 10 m/s [86.69] 1. Rutherford 2. Millikan 3. Thomson 2.50 x 107 m/s [46.7'] 4. Bohr 1.83 x 10 m/s [3.36'] quantization of electron energies (Record your answer in the first box) Use the following information to answer the next two questions quantization of charge (Record your answer in the second box) New airport security measures include the detection of explosives and chemical or presence of a nucleus (Record your answer in the third box) biological warfare agents. One of the newest technological tools is an instrument that has been around for almost one hundred years-the mass spectrometer. New improvements have produced compact versions that require only a sniff of air blown presence of electrons (Record your answer in the fourth box) over a person or object to obtain enough of a sample to analyze: less than a trillionth of a gram. TNT molecules can easily be made to react before entering the mass spectrometer to Your answer:WOO form the well-known, singly ionized, Meisenheimer complex (labelled M- in the diagram below). These negatively charged ions are accelerated into the velocity selector in which a specific velocity is selected using perpendicular electric and magnetic fields. The resulting beam is deflected in another magnetic field, bending Use the following information to answer the next question the beam into a detector. Velocity Selector The students are also given the following reference energy level diagram for helium. E = 75 N/C B = 15 mT (-) Transitions I. II. III. IV. and V correspond to the spectral lines that were observed by the students. Ionization 0.00 eV . . . . . . . . . . . . . . . . . Fifth excited state -0.56 eV Fourth excited state -0.87 ev (+) Third excited state -1.53 eV Detection Chamber 3.7 cm B = 0.36 T I Im IV V Second excited state - First excited state- 3.38 eV - -3.64 eV Ground state 40. The velocity selector illustrated in the above diagram only allows charged particles through a small opening into the detection chamber if they are going a particular speed. In order for an ion to make it straight through this opening, the electric and 42. When an electron in helium atom goes through Transition V, the frequency of the magnetic forces must be in perfect equilibrium. The speed that a charged particle emitted photon is will be going in order to make it into the detection chamber is a.bc x 10 m/s. The values for a, b, c, and d are . (Record your four digit answer) 7.43 x 1014 Hz 6.06 x 1014 Hz 6.68 x 1014 Hz 6.81 x 1014 Hz 41. Using the above information provided, the charge-to-mass ratio of the M- ion is a.bc x 10 C/kg. The values for a, b, c, and d are . (Record your four digit answer) Your answer: 900
