A metal crystallizes in cubic lattice with edge length of \(4\ \text{\AA}\). The number of unit cells of this metal present in \(128\ \text{cm}^3\) volume is
Show Hint
For a cubic crystal,
\[
\boxed{
\text{Number of unit cells}
=
\frac{\text{Total volume}}{a^3}
}
\]
where \(a\) is the edge length of the unit cell.