Question

Can you locate the electron within $0.005nm$?

Answer 1

No.
Use uncertainty principle to determine uncertainty in velocity.
$\Delta v\ge \frac{h}{4\pi m\Delta x}$
On substitution, you will get,
$\Delta v\ge 1.16\times {10}^{7}m{s}^{-1}$
Velocity of electron is therefore expected to be as high as velocity of light. We may say that the velocity of electron is uncertain within $0.005nm$.