The packing fraction of an irregular unit cell is 0.85. The volume of the unit cell is 7.74 pm3. The atomic radius of an atom in the unit cell is 0.68 pm. How many atoms are in the unit cell? Packing fraction = vol of 1 atom x number of atoms in unit cell Volume of unit cell Volume of atom = (4/3)r3 O 3

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The packing fraction of an irregular unit cell is 0.85. The volume of the unit cell is 7.74 pm3. The atomic radius of an atom in the unit cell is
0.68 pm. How many atoms are in the unit cell?
Packing fraction = vol of 1 atom x number of atoms in unit cell
Volume of unit cell
Volume of atom = (4/3)Ir
4
1
3
2
O O 0 0O
Transcribed Image Text:The packing fraction of an irregular unit cell is 0.85. The volume of the unit cell is 7.74 pm3. The atomic radius of an atom in the unit cell is 0.68 pm. How many atoms are in the unit cell? Packing fraction = vol of 1 atom x number of atoms in unit cell Volume of unit cell Volume of atom = (4/3)Ir 4 1 3 2 O O 0 0O
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