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nearest neighbouring distance or relation btw edge length and radius of body centred cubic unit cell 25 pts |
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Answer» Usually, the length of the cell edge is represented by a. The direction from a corner of a cube to the farthest corner is called body diagonal (say BD).Face diagonal = fdbd^2 = 3a^2 Atoms along the body diagonal (say bd) TOUCH each other. Thus, the body diagonal has a length that is four times the radius of the atom, R.bd = 4 r The RELATIONSHIP between a and R can be WORKED out by the Pythagorean theorem:4R=3ahope it helps. give thanks pls follow me |
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