1.

Sodium metal crystallizes in a body-centred cubic lattice with a unit cell edge of 4.29 A^@. The radius of sodium atom is approximately…...

Answer»

`5.72 A^@`
`0.93 A^@` 
`1.86 A^@` 
`3.22 A^@` 

Solution :For bcc structure `R = (SQRT3)/4 a`
`r = (sqrt3)/(4) XX 4.29`
`r = 1.86 A^@`.


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