Question

Lithium crystallizes into body centered cubic structure. What is the radius of lithium if edge length of it's unit cell is 351 pm?

Options

• 75.50 pm

• 240.80 pm

• 300.50 pm

• 151.98 pm

Answer 1

151.98 pm

Explanation:

For bee unit cell,

r = `(sqrt3 "a")/4 = (sqrt3 xx 351)/4` = 151.98 pm