Polonium crystallizes in a simple cubic unit cell, Chemistry

Assignment Help:

polonium crystallizes in a simple cubic unit cell with an edge length of 3.36A.

1. what is the volume of the unit cell?

2. what is the volume of atom in the unit cell?

3. what is the packing efficiency of polonium?

Ans) Volume of unit cell = a3  = (3.36) = 37.93 cu Å

r = a/2 = 3.36/2 = 1.68

Vol of atom = 4/3*pi*r3 = {4*3.14*(1.68)3 }/3 = {4*3.14*4.74}/3 = 19.84 cu Å

Packing efficiency = Vol of atom * no. of atoms / vol of unit cell

For simple cubic, Packing efficiency = 19.84*1/37.93 = 0.52 = 52%


Related Discussions:- Polonium crystallizes in a simple cubic unit cell

Assignment, physical and chemical properties of matter

physical and chemical properties of matter

Organic chemistry, What is electron migration effects and mention their app...

What is electron migration effects and mention their applications

Particulate systems and separation processes, i) Define a membrane in a pro...

i) Define a membrane in a process engineering context. Two of the main desired attributes of membranes are high permeability and high selectivity. Define permeability and select

Crude and dietary fibre, Q. Crude and Dietary Fibre? Crude fibre is the...

Q. Crude and Dietary Fibre? Crude fibre is the organic residue which remains after the food sample has been treated with boiling dilute sulphuric acid, boiling dilute sodiu

The electronic configuration of an element with atomic no., The electronic ...

The electronic configuration of an element with atomic number 7  i.e. nitrogen atom is; (1) 1s 2 , 2s 1 , 2p 3 x                               (2)  1s 2 , 2s 2 , 2p 2 x ,

Organic, types of funtional group

types of funtional group

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd