Total volume of atoms present in a face-centred cubic unit cell of a metal is (r is atomic radius)

Total volume of atoms present in a face-centred cubic unit cell of a m

1.	Total volume of atoms present in a face-centred cubic unit cell of a metal is (r is atomic radius)
Answer» `12/3pir^(3)` `16/3pir^(3)` `20/3pir^(3)` `24/3pir^(3)` SOLUTION :The total NUMBER in the unit CELL of FCC =4 Volume of the atom =`4//3pir^(3)` Total volume in the unit cell `=4times4/3pir^(3)=16/3pir^(3)`