Subject: Physical Chemistry · Chapter: Solid State Chemistry · Topic: X Ray Diffraction Bragg · Exam: NET JUNE 2018 · Marks: 2 · Difficulty: Medium
The (002) plane of an elemental FCC crystal diffracts X-rays ( $\lambda=0.154\,\mathrm{nm}$ ) at Bragg angle $90^{\circ}$. the density of the crystal is $4 \times 10^{4}\,\mathrm{kg}\,\mathrm{m}^{-3}$. The atomic weight of the elemental solid is