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Question
Lithium metal crystallises in a body centred cubic crystal. If the length of the side of the unit cell of the crystal is 351 pm, the atomic radius of lithium will be:
Options
151.8 pm
75.6 pm
300.5 pm
24.8 pm
MCQ
Solution
151.8 pm
Explanation:
Lithium crystallises as a body-centered cubic crystal.
= `(sqrt(3)a)/4 = sqrt(3)/4 xx 351` pm = 151.8 pm
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