If uncertainty in postion of an electron is same as the ∆x of He atom. If the ∆p of electron is 32×10^5 then find the ∆p in He atom?

what should be the uncertainty inthe the velocity of an electron if the uncertainty in its position is 0.005 nm, the mass of electron is 9.109× 10^-31 kg and the value of h is 6.6252 × 10^-34 jpule /second ?

Why an electron Cannot be present in the nucleus according to the Heisenberg uncertainty principle?