The edge length of a face centred unit cubic cell is 508 pm. If the radius of cation is 110 pm, the radius of anion will be
The edge length of a face centred unit cubic cell is 508 pm. If the radius of cation is 110 pm, the radius of anion will be
A. 288 pm
B. 144 pm
C. 618 pm
D. 398 pm
4 views
1 Answers
Correct Answer - B
`2r^(+)+2r^(-)=a("edge length")`
`r^(-)=1//2(a-2r^(+))`
`=1//2(508-220)=144 "pm"`
4 views
Answered