NEET 2007
- Exam
- NEET
- Year
- 2007
- Subject
- Chemistry
- Chapter
- Solid State
NEET 2007 · Chemistry · Solid State
The fraction of total volume occupied by the atoms present in a...
The fraction of total volume occupied by the atoms present in a simple cube is:
Options
- A
- B
- C
- D
Correct answer
D.
Step-by-step solution
Number of atoms per unit cell
Atoms touch each other along edges.
Hence \begin{aligned}
& \text{Therefore % fraction }=\frac{\frac{4}{3} \pi r^3}{(2 r)^3}=\frac{\pi}{6} \\
& =0.52
\end{aligned}$$