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The edge length of sodium chloride unit ...

The edge length of sodium chloride unit cell is 564 pm. If the size of `Cl^-` ion is 181 pm. The size of `Na^+` ion will be

A

101 pm

B

181 pm

C

410 pm

D

202 pm

Text Solution

Verified by Experts

The correct Answer is:
A
`2(r_(+) + r_(-))=a`
`2(r_(Na^+)+ r_(Cl^-))`=564 pm
`r_(Na^+)=564/2-181`=101 pm
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