Sodium has body centred packing. Distance between two nearest atoms is 3.7 Å.

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Sodium has body centred packing. Distance between two nearest atoms is 3.7 Å. The lattice parameter is

Options

(a) 4.3 Å
(b) 3.0 Å
(c) 8.6 Å
(d) 6.8 Å

Correct Answer:

4.3 Å

Explanation:

d = √3/2 a 3.7 = √3/2 a
a = 2 x 3.7 / √3 = 4.3 Å

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Topics: Electronic Devices (124)
Subject: Physics (2479)

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