How fast is electron moving relative to the speed of light

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The mass of an electron is 9.11 * 10^{-31} kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31*10^{-10}m, how fast is the electron moving relative to the speed of light? The speed of light is 3.00*10^8 m/s

Reference no: EM13158165

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How fast is electron moving relative to the speed of light : The mass of an electron is 9.11 * 10^{-31} kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31*10^{-10}m, how fast is the electron moving relative to the speed of light?

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