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Sodium metal crystallises as a body centred cubic lattice with the cell edge 4.29 Å. What is the radius of sodium atom (in cm) ?

(a) 9.312 x 10-7

(b) 1.857 x 10-8

(c) 2.371 x 10-7

(d) 3.817 x 10-8

1 Answer

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Best answer

Correct option (b) 1.857 x 10-8

Explanation:

 In body-centred cubic crystals,

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