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ectrons are accelerated from the electron gun to the anode. The electric - Electron gun Use the following information to answer the next two questions

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ectrons are accelerated from the electron gun to the anode. The electric - Electron gun Use the following information to answer the next two questions potential difference between the electron gun and the anode accelerates the electrons to a speed of 2.65 x 10' m/s. The decay chain of ununquadium-289 is shown below. After this acceleration, the electrons - Anode pass through an opening in the anode 280 Uuq -> Uub + X -> 281 D and enter the magnetic lens. The magnetic lens focuses the beam Ununquadium-289 has a half-life of 30.4 s. of electrons. A particular electron -Magnetic lens experiences a magnetic force of 3.31 x 10-12 N while in the magnetic ens. As a result of this magnetic force, 18. The decay particles X and Y are the path of the electrons spirals and the To image processor beam of electrons becomes focused both beta positive particles Scanning coils deflect the beam of an alpha particle and a beta positive particle, respectively electrons back and forth across the specimen. a beta positive particle and an alpha particle, respectively Some electrons from the beam reflect off the specimen at the same speed at which they hit. The backscattered Backscattered both alpha particles electron detector picks up these elector Secondary electrons. These backscatt electron electrons provide information ab composition and surface characteristics 19. Use the information from the above question to answer the following question. of the specimen. If 1.00 ug of ununquadium-289 is initially produced, the mass of ununquadium-289 The electron beam causes the specimen remaining after 1.50 min will be to emit electrons from its surface. The - Specime secondary electron detector picks up these electrons. 0.128 ug Information collected from the scanning 0.703 ug coils and the two detectors is sent to the image processor. This processor produces a three-dimensional image of 0.255 ug the specimen. 0.977 pg 20. The instantaneous radius of the resulting spiral of the electron's path in the magnetic lens is a.bc x 10"m. The values of a, b, c, and d are (Record your 4 digit answer) Your answer: Prev Next Questions Questions 17. In the reaction C _ B + x , what does X represent? 16. The energy equivalence of the mass of one alpha particle, expressed in units of joules, in scientific notation to two significant digits, is a.b x 10cd J. The values of a, positron b, c, and d are . (Record your 4 digit answer) neutron Your answer: electron Prev Next helium nuclei 21. What is the daughter product for 24 Cm when it undergoes B- decay? Questions 251 98 15. Identify the number of subatomic particles found in the . U nucleus. 92 protons and 147 neutrons 94 Pu 92 protons and 239 neutrons 147 protons and 239 electrons 247 Bk 97- 239 protons and 92 neutrons 247 of Am

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