Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) Copper crystallizes in fcc with a unit cells length of 361 pm. What is the radius of copper atom? - Sarthaks eConnect
search
Ask Question

Welcome to Sarthaks eConnect Question Bank

Practice Online Test Series for JEE Main 2018 & NEET 2018

Copper crystallizes in fcc with a unit cells length of 361 pm. What is the radius of copper atom?

A.

108 pm

B.

127 pm

C.

157 pm

D.

181 pm

Solution

0 votes
 
Best answer

For FCC,

`sqrt2a=4r` (the atoms touches each other along the face -diagonal)

`r=(sqrt2a)/4=(sqrt2xx361)/4=127`pm