in NaCl crystal Cl^- ions are in fcc aarangement. calculate no. of Cl^- ions in unit cell
diwakar chaubey , 6 Years ago
Grade 12th pass
Physical Chemistry> in NaCl crystal Cl^- ions are in fcc aara...
1 Answers
Arun
Last Activity: 6 Years ago
No of sodium ions = 12 (at edge centres) × 1/4 + 1 (at body centre) × 1= 4
No of chloride ions = 8(at corner) × 1/8+6(at face centres) × 1/2 = 4
Thus, the number of NaCl units per unit cell is 4.
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