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The powder pattern of a cubic element is represented by the observed sin20 values: 0.1202, 0.238, 0.357, 0.475, 0.593, 0.711, 0.830 made with Cu Ka radiation. Use spreadsheet below to (1) index the lines; (2) find the Bravais lattice; (3) calculate the lattice parameter (or parameters); (4) Identify the element from the table given in Cullity's Appendix, CRYSTAL STRUCTURES OF SOME ELEMENTS. line # (i) since Your analysis hkl a 0.1202 N 0.238 0.357 0.475 0.593 0.711 0.83