The number of atoms in unit cell of NaCl crystal is

Question

The number of atoms in unit cell of NaCl crystal is (A) 2 (B) 4 (C) 6 (D) 8

Tardigrade Admin · Accepted Answer

NaCl has face centred cubic structure. In it the number of atoms per unit cell. Number of atoms at comer =8× (1/8)=1 Number of atoms at face centre =6× (1/2)=3 Total no. of atoms =4

Q. The number of atoms in unit cell of $N a Cl$ crystal is

2

4

6

8

$N a Cl$ has face centred cubic structure.
In it the number of atoms per unit cell.
Number of atoms at comer $= 8 \times \frac{1}{8} = 1$
Number of atoms at face centre $= 6 \times \frac{1}{2} = 3$
Total no. of atoms $= 4$

Q. The number of atoms in unit cell of NaCl crystal is

2

4

6

8

NaCl has face centred cubic structure. In it the number of atoms per unit cell. Number of atoms at comer =8×81​=1 Number of atoms at face centre =6×21​=3 Total no. of atoms =4

Q. The number of atoms in unit cell of $N a Cl$ crystal is

$N a Cl$ has face centred cubic structure.
In it the number of atoms per unit cell.
Number of atoms at comer $= 8 \times \frac{1}{8} = 1$
Number of atoms at face centre $= 6 \times \frac{1}{2} = 3$
Total no. of atoms $= 4$