Question

The C-C and Si-C interatomic distances are 154 pm and 188 pm.the atomic radius of Si is ​

Answer 1

154/2=77

188-77=111

And. is 111

Answer 2

Hey Dear,

◆ Answer -

rSi = 110 pm

◆ Explanation -

Radius of C-atom is calculated by -

C-C = 2 × rC

154 = 2 × rC

rC = 154 × 1/2

rC = 78 pm

Radius of rSi is calculated by -

C-Si = rSi + rC

188 = rSi + 78

rSi = 188 - 78

rSi = 110 pm

Hence, atomic radius of silicon is 110 pm.

Hope this helped you.