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Explain how much portion of an atom located at (i) corner and (i) body-centre of a cubic unit cell is part of its neighbouring unit cell. |
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Answer» Solution :(i) An atom at the corner of a UNIT cell is shared by 8 neighbouring cells. Hence, portion of the atom that belongs to ONE unit cell is `1//8`. (ii) Atom at the CENTRE of BODY of cubic unit cell belongs completely to that unit cell. Thus, full portion of that atom belongs to the unit cell. |
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