With what speed Does an electron revolve around the Nucleus in an atom.

Question

anonymous · Answer

$$mvr=nh/2 \pi$$

anonymous · Answer

$$F=(9\times10^{9})Ze ^{2}/r ^{2}$$

anonymous · Answer

you can make the formula from it.

anonymous · Answer

@Krishnadas  I am sorry. Really I didn't understand the formulae. If possible can you please give a numeric value for the formulae above.

anonymous · Answer

Nevertheless there are relativistic effects for the electron. The rough rule is that the electron's classical speed is about the charge it "sees" divided by 137. The electron might see more or less of the nuclear charge depending on whether it's closer or farther from the nucleus. For heavy elements like Uranium, the classical speed of the innermost electrons is a significant fraction of the speed of light.

anonymous · Answer

If we can find the speed of electron in an atom, then why do we fail to determine exact position of an electron with respect to time.
I think its the concept of relativity.

anonymous · Answer

yea your right its the concept of relativity :)

anonymous · Answer

I think it also comes under uncertainity.