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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 (111) plane is: OA. 9.86 X 109 atoms/mm² OB. 48.56 X 10⁹ atoms/mm² OC. 0.96 X 1013 atoms/mm² OD. 22.11 X 1013 atoms/mm2

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 (111) plane is: OA. 9.86 X 109 atoms/mm² OB. 48.56 X 10⁹ atoms/mm² OC. 0.96 X 1013 atoms/mm² OD. 22.11 X 1013 atoms/mm2

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QUESTION 30 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 (111) plane is: OA.9.86 X 10⁹ atoms/mm² OB. 48.56 X 10° atoms/mm² OC. 0.96 X 1013 atoms/mm² OD. 22.11 X 10¹3 atoms/mm²
Transcribed Image Text:QUESTION 30 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 (111) plane is: OA.9.86 X 10⁹ atoms/mm² OB. 48.56 X 10° atoms/mm² OC. 0.96 X 1013 atoms/mm² OD. 22.11 X 10¹3 atoms/mm²
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