Q4: Consider the following XRD pattern for Aluminum, which was collected using Cuka radiation. Istenity (38.43,100.0) 100 90 ALUMINIUM 2=1.540562 A 80 70 00 (44.67,46.9) 40 (65.02,26.4) (78.13,27.9) 30 (116.36,11.9) 30 (111.83,12.2N (82.33,7.8) 10 (98.93,3.6) 20 > 10 15 0 15 s0 1S 90 9 100 10s 110 115 120 Index this pattern and determine the lattice parameters. Steps: (1) Identify the peaks. (2) Determine sin 2 0. (3) Calculate lattice parameters

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Nuclear Reactions

Nuclear reactions are processes in which the fundamental characteristics of a nucleus changes. They change into a completely different nucleus. These processes occur naturally in an unstable nucleus. Bombarding an energetic particle can induce nuclear reactions.  In this article, both the naturally occurring nuclear reactions are termed as radioactive decay and the induced nuclear reactions are further categorized as nuclear fission and nuclear fusion.