Question

An element X (At. wt = 80 g/mol) having F.C.C structure, calculate no. of unit cells in 8 gm of X.

Answer 1

Answer:

Please mark me as brainliest

Fcc unit cell structure has 4 atoms in one unit cell,

Let's find the total atoms,

N

a

N

=

Mwt

Wt

or N=

80

N

a

×8

=

10

Na

Now as the Fcc unit cell has 4 atoms so

No. of unit cells =

10×4

Na

=

40

N

a