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

Experimental research, how to write research design in experimental researc...

how to write research design in experimental research

The number of electrons in cl- ion is, The number of electrons in c l -  ...

The number of electrons in c l -  ion is: (1) 19      (2) 20      (3) 18     (4) 35 Ans: 18

Explain the geometry of ccl4, Explain the geometry of CCl4 We first hav...

Explain the geometry of CCl4 We first have to know the geometry of CCl4. This should be easy: it's tetrahedral, because the carbon is bonded to four identical groups. Now, as s

Moles!, a tablet of extra strength tylenol contains 5.00x10^2 mg of acetami...

a tablet of extra strength tylenol contains 5.00x10^2 mg of acetaminophen. Calculate the number of moles of acetaminophen present in one tablet of extra strength tylenol?

Alkanes, define alkanes and explain classification of alkanes.

define alkanes and explain classification of alkanes.

Explain transition elements and their compounds, Explain the following obse...

Explain the following observations: (i)  Generally there is an increase in density of elements from titanium (Z = 22) to copper (z =29) in the first series of transition element

Inorganic chemistry, dipole moment of para.nitro aniline is 6.10 D.why

dipole moment of para.nitro aniline is 6.10 D.why

Physical properties of cinnamic acid, Physical Properties of Cinnamic Acid ...

Physical Properties of Cinnamic Acid (a) Cinnamic Acid is a white crystalline solid and its melting point 133° C . (b) Cinnamic Acid is sparingly soluble in water. (c) Ci

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