11 In Geiger and Marsden's a-particle scattering experiment, a-particles were directed at a very thin gold foil. Fig. 11.1 shows five of the nuclei of the atoms in one layer in the gold foil. Also shown are the paths of three a-particles directed at the foil. Fig. 11.1 (a) On Fig.11.1, complete the paths of the three a-particles. (b) 0 State the result of the experiment that shows that an atom consists of a very tiny. cbarged, core, containing almost all the mass of the atom. (ii) State the sign of the charge on this core. (iii) State what occupies the space between these charged cores. (c) The nucdide notation for an a-particle is a. State the number of protons and neutrons in an a-particle protons = neutrons =

11 In Geiger and Marsden's a-particle scattering experiment, a-particles were directed at a very thin gold foil. Fig. 11.1 shows five of the nuclei of the atoms in one layer in the gold foil. Also shown are the paths of three a-particles directed at the foil. Fig. 11.1 (a) On Fig.11.1, complete the paths of the three a-particles. (b) 0 State the result of the experiment that shows that an atom consists of a very tiny. cbarged, core, containing almost all the mass of the atom. (ii) State the sign of the charge on this core. (iii) State what occupies the space between these charged cores. (c) The nucdide notation for an a-particle is a. State the number of protons and neutrons in an a-particle protons = neutrons =

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A neutron in a star makes an elastic head-on collision with a carb on nucleus initially at rest. The mass of the carbon nucleus is 12 times the mass of the neutron mn = 1.7 ×10^−27kg. The initial kinetic energy of the neutron is 1.6 × 10^−13J. a) Show that the final speed of the carbon nucleus, Vc, is given by (see image) where vn is the initial speed of the neutron.
Elements that appear in the same column of the periodic table often share similar chemical properties. In the case of the alkaline earth metals, this is troublesome since the body treats calcium (necessary for proper bone growth) and radium (a radioactive element) as chemically similar, storing both in bone marrow. The radium then bombards nearby bone cells with alpha particles, causing them to "crumble." Radium poisoning investigations often center on the identification of radium and its isotopes in bone samples using lonized isotope a mass spectrometer. Pictured is a schematic of a simplified mass spectrometer that shows the paths of calcium isotopes, barium (another alkaline earth metal) isotopes, and radium isotopes entering the chamber. The region shown is immersed in a constant magnetic field of 0.552 T pointing out of the plane of the schematic. Motion of the positively-charged isotopes toward the right was initiated by a potential A -AV- B difference of 3082 V on the two plates…
Would you kindly explain step by step as you answer the following question... A sample of material contains one milligram of Iodine-131. Iodine -131 has a half - life of 8.02 days. Find:a) The number of atoms of iodine-131 initially presentb) The activity of the sample in becquerel
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Alpha particles of kinetic energy 6.9M V are incident at a rate of 3.1x 10" per second on a copper foil of thickness 3.1 x 10-m. A circular detector of diameter 1.0cm is placed 13cm from the foil at an angle of 30° with the direction of the incident alpha particles. At what rate does the detector measure scattered alpha particles? (The molar mass of copper is 63.5 and its density is 8.9em-)
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