Atomic packing factor is

• 1.  Projected area fraction of atoms on a plane
• 2.  Distance between two adjacent atoms
• 3.  Volume fraction of atoms in cell
• 4.  None

Dear student
Please find the solution to the asked query:

Atomic packing fraction is the volume of the atoms in a cell.

Packing fraction = Volume of one sphere/ Volume of the unit cell( a³)

a³ =  Volume of one sphere / Packing fraction

Hence option 3 is correct.


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