1.

Sodium metal crystallizers in B.C.C. lattice with edge length of 4.29 A^o. The radius of sodium atom is

Answer»

`2.145 Å`
`2.857Å`
`1.857Å`
`1.601Å`

SOLUTION :EDGE length `a = 4.29Å`
For B.C.C. lattice
`R = ( SQRT( 3) a )/( 4) = ( sqrt( 3))/( 4) xx 4.29`
`= 1.857 Å`


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