NCERT Class XII Chemistry
Chapter - The Solid State
Questions with Solutions
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Question : 39
Total: 50
Explain how much portion of an atom located at (i) corner and (ii) bodycentre of a cubic unit cell is part of its neighbouring unit cell.
Solution:
(i) A point lying at the corner of a unit cell is shared equally by eightunit cells and therefore, only one-eighth (1/8) of each such point belongsto the given unit cell.
(ii) A body-centred point belongs entirely to one unit cell since it is notshared by any other unit cell.
(ii) A body-centred point belongs entirely to one unit cell since it is notshared by any other unit cell.
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