Atoms on the surface of a silicon crystal form lines that are spaced 1.05 times
ID: 1057024 • Letter: A
Question
Atoms on the surface of a silicon crystal form lines that are spaced 1.05 times 10^-9 m apart. If you wanted to use the diffraction of electrons to study the spacing of these lines of atoms then what momentum, p, should the electrons in your electron beam have? Explain any assumptions that you use. What nuclide is produced in the beta^- decay of^40 _20Ca? Illustrate this process with a decay equation showing the various nuclear components (there is a periodic table on the back of the paper). Explain what is meant by mass defect and binding energy for nuclei. Use the data on page 2 of this paper to calculate the mass defect and binding energy for a Calcium atom^40 _20Ca. The atomic mass for^40 _20Ca is 39.96259098 u.Explanation / Answer
What nuclide is produced in beta decay of 40 Ca20
1n0 --------à 1p1 + e-
40 Ca20--------à 40 sc21+ e-
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Binding Energy
it is the vitality required to part a core of a molecule into its segment parts: protons and neutrons, or, all things considered, the nucleons. The coupling vitality of cores is dependably a positive number, since all cores require net vitality to separate them into individual protons and neutrons
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Mass defect : it alludes to the distinction in mass between of a molecule and the whole of the masses of the protons, neutrons, and electrons of the iota
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