Question

choose the most correct answer.1. Pb has fcc structure with edge length of unit cell 495 pm. Radius of Pb atom isa. 205 pm b. 185 pm c. 260 pm d. 175 pm​

Answer 1

Answer: option d

given it is fcc,hence

4 r=1.41 a                    r=radius   a=edge length

r= (1.41* 495)/4= 175 pm

Explanation:if it helps mark as brainliest

Answer 2

Answer:

option d is the right answer mate

175 pm