Carbon has zinc-blende type unit cell. If the atomic radius of C is 77 pm, the edge length of face-centered unit cell is

Book Online Demo

Check Your IQ

Try Test

Courses

Offline Centres

Carbon has zinc-blende type unit cell. If the atomic radius of C is 77 pm, the edge length of face-centered unit cell is

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!

An Intiative by Sri Chaitanya

231.0 pm

308.0 pm

375.6 pm

355.7 pm

answer is A.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

The distance between corner and tetrahedral void is $\sqrt{3} a / 4$ .

Hence $2 r_{C} = \sqrt{3} a / 14$ This gives $a = 8 r_{C} / \sqrt{3} = 8 (77 pm) / 1.732 = 355.7 pm$

Watch 3-min video & get full concept clarity

JEE

NEET

Foundation JEE

Foundation NEET

CBSE