AIIMS2004PhysicsElectrostatics
In the basic CsCl crystal structure, Cs ⁺ and Cl ⁻ ions are arranged in a bcc configuration as shown in the figure. The net electrostatic force exerted by the eight Cs ⁺ ions on the Cl ⁻ ions is
Options
- A1 4 ₀ 4 e^2 3 a^2
- B1 4 ₀ 16 e^2 3 a^2
- C1 4 ₀ 32 e^2 3 a^2
- Dzero.
Correct answer
D. zero.
Step-by-step solution
The electrostatic force due to one Cs ⁺ ion is balanced by diagonally opposite other Cs ⁺ . Thus the net electrostatic force on Cl ⁻ ion due to eight Cs ⁺ ions is zero.