which unit cell has higher mass

Asked by opbmschool | 27th Jun, 2010, 12:34: PM

Expert Answer:

NaCl
CsCl unit cell las one Cs atom and one Cl atom. Cs is present in the body centre and Cl is prpesent on all eight corners.
Mass of unit cell = 133 + 35.5 = 168.5
 
NaCl unit cell has Cl on all corners and face centres. therefore total number of Cl atoms present = 4. NaCl has Na on all edge cetres and body centre. Tehrefore, it has 4 Na taoms.
So, mass of NaCl unit cell = (4 x 23) + (4 x 35.5) = 234

Answered by  | 14th Jul, 2010, 04:28: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.