Before the discovery of the neutron by james chadwick in 1932, it was thought that the nucleus contained electrons and neutrons. use the uncertainty principle to show that an electron cannot exist inside the nucleus. (compare the attractive coulomb potential to the energy uncertainty resulting from the confinement within the nucleus. take the radius of the nucleus to be 10-15 m.)
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Sodium chloride, nacl, is formed when a sodium atom transfers its electron to a chlorine atom. the difference in charge between the two atoms creates a(n) attraction that bonds them together.
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What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass
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Aflask with vinegar in it has a mass of 160 grams. a balloon with baking soda in it has a mass of 40 grams. the balloon is attached to the flask to seal the opening and the vinegar and baking soda mixes. the balloon inflates to a large volume. what will the total mass of the balloon and flask be after the balloon inflates? explain. a) less than 200 grams because the solid baking soda disappears. b) 200 grams, because all the atoms remain in the balloon or flask. c) more than 200 grams because the size of the balloon is so much larger. d) less than 200 grams because gases such as the one in the balloon are lighter than solids and liquids.
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Before the discovery of the neutron by james chadwick in 1932, it was thought that the nucleus conta...
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