Question

In a cubic unit cell atoms X are present at the corners and body centre. atoms Y present on the centre of edges and Z on the face centre. what is the formula of the unit cell?​

Answer 1

Answer:

here your answer

Explanation:

:

(i) X=18×6=34

Y=18×2+12×3=74

Z=12×3+1+1=52=104

For formula: X3Y7Z10=X3Y7Z10

(ii) 1 amu =1.67×10−24 gram

1 amu =16.02×1023 gram.

Density =MassVolume=34×40+74×60+104×80(2×10−8)3 amu/cc =335×1.67×10−248×10−24 = 69.8` gram/cc