which unit cell has higher mass

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

Expert Answer:

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.