Q27 / 150 · MHT CET 2022 (08 Aug Shift 1) · Chemistry

Lithium forms BCC structure having edge length of unit cell $351 \mathrm{pm}$ then atomic radius of lithium is

A
75 pm
Correct answer
B
152 pm
C
180 pm
D
210 pm

Solution

$\sqrt{3} a=4 r$ $r=\frac{\sqrt{3} \times 351}{4}=151.98 \mathrm{pm}$

Hence, the correct answer is option: 'B'.

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