Question

Pb has fcc sturcture with edge lenght of unit cell 495 pm. Radius of Pb atom is

a.205 pm
b. 185 pm
c. 260 pm
d. 175 pm​

Answer 1

d.) 175 pm

Solution. Pb has fcc structure with edge length of unit cell 495 pm. Radius of Pb atom is 175 pm.

Answer 2

Answer ☞

Option C is the correct answer

D. 175.

Explanation ☞

Using the formula = r = a/2√2.

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