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

Science, unique prperties of colloids

unique prperties of colloids

Poisnous gases released during burning of the plastic , What are the major ...

What are the major poisnous gases released during burning of the plastic substances? Ans) It is high time that we start taking concrete steps in order to prevent pollution or else

Difference between phenol and alcohol, Difference between phenol and alcoho...

Difference between phenol and alcohol Property Phenol ( C 6 H 5 OH ) Alcohol ( C 2 H 5 OH ) Odour Typica

Resonance, what are the applications of resonance effect

what are the applications of resonance effect

Methods for manufacture of soaps, Methods for Manufacture of Soaps Ther...

Methods for Manufacture of Soaps There are the following three methods for manufacture of soaps: (a) The cold process (b) The hot process (c) Modern process

The transition elements high enthalpies of atomization, (i) How would you a...

(i) How would you account for the following: (a) The transition elements exhibit high enthalpies of atomization. (b) The 4d and 5d series of the transition metals have more

Extraction of aluminium, Q. Extraction of Aluminium? Aluminium cannot b...

Q. Extraction of Aluminium? Aluminium cannot be extirpated economically from the silicate minerals. Therefore bauxite is the most important ore for the extraction of alumimum,

Seperation, what techniques can you use to separate solute from liquid

what techniques can you use to separate solute from liquid

#electrochemistry, The emf of the cell Cd/CdSO4(0.0093M)//CdSO4/Cd is 0.086...

The emf of the cell Cd/CdSO4(0.0093M)//CdSO4/Cd is 0.086V at 25°C find the value of X solution

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