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Question

Chemistry Question on Unit Cells

An element occuring in the bcc structure has 12.08×102312.08 \times 10^{23} unit cells. The total number of atoms of the element in these cells will be

A

24.16×102324.16 \times 10^{23}

B

36.18×102336.18 \times 10^{23}

C

6.04×10236.04 \times 10^{23}

D

12.08×102312.08 \times 10^{23}

Answer

24.16×102324.16 \times 10^{23}

Explanation

Solution

There are two atoms in a bcc unit cell. So, number of atoms in
12.08×102312.08 \times 10^{23} unit cells
=2×12.08×1023=24.16×1023= 2 \times 12.08 \times 10^{23} = 24.16 \times 10^{23} atoms.