Assertion (A): Atomic number of sodium is 11. Reason (R): Sodium has a body centred cubic lattice.

Assertion (A): Atomic number of sodium is 11.

Reason (R): Sodium has a body centred cubic lattice.

[A].	Both A and R are true and R is correct explanation of A
[B].	Both A and R are true but R is not correct explanation of A
[C].	A is true but R is false
[D].	A is false but R is true

Answer: Option B

Explanation:

Atomic number is not dependent on lattice structure.