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The mass of an electron is 9.11 x 10-31 kg and the diameter of a hydrogen atom is 100 pm (100 x 10-12 m). As the electron cou

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Answer #1

use Heisenberg uncertainty principle,

Δx*Δv = h/(4*pi*m)

Here:

Δv = 1.0E-10 m

mass, m = 9.11*10^-31 Kg

Putting values,

1.0E-10*Δ v = (6.626*10^-34)/(4*3.14*9.11E-31)

1.0E-10*Δ v = 5.791*10^-5

Δv = 5.791*10^5 m/s

Answer: 5.79*10^5 m/s

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