1.

Lithium forms body centred cubic structrue.The length of the side of its unit cell is 351 pm.Atomic radius of the lithium will be

Answer»

75 pm
300 pm
240 pm
152 pm

Solution :For BCC STURCTURE,`sqrt(3)a=4r`
`r=(sqrt(3))/(4)a=(sqrt(3))/(4)xx351=152` pm


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