1.

In a close packed centred cubic lattice of potassium the corrcet relation between the atomic radius (r)of potassium and the edge length (a) of the cube is

Answer»

`R=a/(sqrt(2))`
`r=a/(sqrt(3))`
`r=(sqrt(3))/2a`
`r=(sqrt(3))/4a`

SOLUTION :For BCC `4r=sqrt(3)aimpliesr=(sqrt(3))/4a`


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