Get a detailed solution and exclusive access to our masterclass to ensure you never miss a concept

By Expert Faculty of Sri Chaitanya

Question

Caesium atoms are the largest naturally occurring atoms. The radius of Cs atom is 2.6 $\stackrel{\mathrm{o}}{\mathrm{A}}$. The number of moles of Cs atoms to be laid side by side to give a row of Cs atoms 2.50 cm x × 10^{-17} . Find the value of x.

Moderate

Solution

Diameter of Cs $=2\times 2.6=5.2\text{\u212b}=5.2\times {10}^{-8}\mathrm{cm}$

Number of atoms in 2.50 cm 2.50 row = $\frac{2.50}{5.2\times {10}^{-8}}$

$\begin{array}{r}=0.48\times {10}^{8}\\ =4.8\times {10}^{7}\mathrm{Cs}\text{atoms}\end{array}$

$\therefore \text{Moles of Cs atoms}=\frac{4.8\times {10}^{7}}{6\times {10}^{23}}=0.8\times {10}^{-16}$

$=8\times {10}^{-17}$

$\begin{array}{r}\therefore x\times {10}^{-17}=8\times {10}^{-17}\\ \Rightarrow x=8\end{array}$

NEW

Talk to our academic expert!

Create Your Own Test

Your Topic, Your Difficulty, Your Pace

Create Your Own Test

Your Topic, Your Difficulty, Your Pace

Similar Questions

lonic lattice has two major points defects, (1) Schottky (2) Frenkel defects Schottky defects occurs due to the cation-anion pair's missing from the lattice sites. Frenkel defects occurs when an ion leaves its lattice site and fits into an interstitial space. The neutrality of the crystal is being maintained and we considered all losses from interstitial positions

Get your all doubts cleared from

Sri Chaitanya experts

+91

799 666 8865

support@infinitylearn.com

6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.

JEE

JEE Mock Tests

JEE study guide

JEE Revision Notes

JEE Important Questions

JEE Sample Papers

JEE Previous Year's Papers

NEET

NEET previous year’s papers

NEET important questions

NEET sample papers

NEET revision notes

NEET study guide

NEET mock tests

Popular Books

HC Verma Part 1HC Verma Part 2RS AgarwalRD SharmaLakhmir SinghDK GoelSandeep GargTS GrewalNCERT solutions

Class 12 NCERT SolutionsClass 11 NCERT SolutionsClass 10 NCERT SolutionsClass 9 NCERT SolutionsClass 8 NCERT SolutionsClass 7 NCERT SolutionsClass 6 NCERT Solutions