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In the basic CsCI crystal structure,Cs^(...

In the basic CsCI crystal structure,`Cs^(+)` and`CI^(-)` ions are arrnged in a bcc configuration as shown in the figure.The net electrostatic force exerted by the eights `Cs^(+)` ion9s on the `Cl^(-)` ions is

A

`-(1)/(4pivarepsilon_(0))-(4e^(2))/(3a^(2))`

B

`-(1)/(4pivarepsilon_(0))-(16e^(2))/(3a^(2))`

C

`-(1)/(4pivarepsilon_(0))-(32e^(2))/(3a^(2))`

D

Zero

Text Solution

Verified by Experts

The correct Answer is:
D
The electrostatic force due to one `Cs^(+)` iion is balanced by diagonally oppsite other`Cs^(+)`.Thus the net electrostatic force on Cl ion due to eight `Cs^(+)` ions is zero.
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