1.

The number of atoms in \[100\,\,g\] of an \[fcc\] crystal with density \[d=10\,\,g/c{{m}^{3}}\] and cell edge equal to \[100\,\,pm,\]is equal to              [CBSE PMT 1994; KCET 2002]

A.                 \[4\times {{10}^{25}}\] 
B.                 \[3\times {{10}^{25}}\]
C.                 \[2\times {{10}^{25}}\]
D.                 \[1\times {{10}^{25}}\]
Answer» B.                 \[3\times {{10}^{25}}\]


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