Total volume of atoms present in a face centred cubic unit cell of a metal is (r=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=atomic radius)
Answer» `20/3pir^(3)` `24/3pir^(3)` `12/3pir^(3)` `16/3pir^(3)` Solution :Volume of one ATOM =`4//3pir^(3)` If fcc number of atoms per unit cell =4 `THEREFORE` volume of FOUR atoms=`4times4/3pir^(3)=16/3pir^(3)`