QUESTION 28 The lattice constant of the unit cell of a-iron (has a bcc structure) is 0.287 nm. The number of atoms/mm2 (atoms per unit area) for the (100) plane is: OA. 3.48 X 10⁹ atoms/mm² OB. 6.97 X 10⁹ atoms/mm² OC. 1.21 X 10¹3 atoms/mm² OD.2.43 X 10¹3 atoms/mm2

QUESTION 28 The lattice constant of the unit cell of a-iron (has a bcc structure) is 0.287 nm. The number of atoms/mm2 (atoms per unit area) for the (100) plane is: OA. 3.48 X 10⁹ atoms/mm² OB. 6.97 X 10⁹ atoms/mm² OC. 1.21 X 10¹3 atoms/mm² OD.2.43 X 10¹3 atoms/mm2

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Crystal Lattices and Unit Cell

Consider a crystal. The regular and repeating pattern of constituent particles is the most distinguishing feature of crystalline solids. A crystal lattice is formed when these particles are replaced with representative points. The three-dimensional arrangement of constituent particles is known as a crystal lattice. Unit cell is that the smallest portion of a space lattice which when repeated in several directions, generate the whole lattice. Unit cell is a building block of a lattice. It is the smallest unit of cell.

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