Heisenberg Uncertainty Principle

If we apply this principle to the electron going around the atom, then we know the electron is somewhere near the atom,

(?x = 2r = 1 x 10-10 m)

then there should be at least some uncertainty in the momentum of the atom:

?px > 5 x 10-35 J*s / 1 x 10-10 m = 5 x 10-25 m/s

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