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

Explain the process of threshing, Threshing The process of threshing se...

Threshing The process of threshing separates the kernels from the stalks or panicles on which they grow. Threshing may take place in the field, or at the homestead or village;

221, How many grams of CO2 will be produced from burning 115.5 grams of C4H...

How many grams of CO2 will be produced from burning 115.5 grams of C4H8 with 310.5 grams of oxygen given the following equation..... C4H8 + 4 O2 = 2 CO2 +4 H2O

Westron, how to prepare westron from acetylene

how to prepare westron from acetylene

The maximum probability of finding an electron, The maximum probability of ...

The maximum probability of finding an electron in the d xy   orbital is: (1)  Along the x-axis (2) Along the y-axis (3)  At an angle of 45 0 degree  from the  x  and y

Organic chemistry, the measured dipole moment of-para nitroaniline (6.2D) i...

the measured dipole moment of-para nitroaniline (6.2D) is larger than the value calculating using empirical group moment (5.2D)

Define egg foam stability, Q. Define Egg foam stability? The two factor...

Q. Define Egg foam stability? The two factors of utmost importance in egg white foams are stability and volume. Several factors influence one or both of these characteristics

Electrochemistry, explain how electrophoretic effect affects transport num...

explain how electrophoretic effect affects transport number

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