The radii of Na^(+) and Cl^(-) ions are 95 pm and 181 pm respectively. The edge length of NaCl unit cell is

The radii of Na^(+) and Cl^(-) ions are 95 pm and 181 pm respectively.

1.	The radii of Na^(+) and Cl^(-) ions are 95 pm and 181 pm respectively. The edge length of NaCl unit cell is
Answer» 276 PM 138 pm 552 pm 45 pm Solution :As NaCl has fcc lattice, edgelength =`2times"Destance between NA^(+) and Cl^(-)ions` =`2(r_(Na+)+r_(Cl-))=2(95+181)`pm. ltbrge552 pm.