NEET 2009 Chemistry question
Not in JEE Main or NEET syllabus
Copper crystallises in a face-centred cubic lattice with a unit cell length of 361 pm. What is the radius of copper atom in pm?
Answer: (4)
Solution
In a face-centred cubic (fcc) unit cell the atoms touch along the face diagonal, so . , option (4). Option (2) 181
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