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If a hydrogen atom and a helium atom are traveling at the same speed, A. the wavelength of the helium atom will be about 4 times longer than the...
If a hydrogen atom and a helium atom are traveling at the same speed,A. the wavelength of the helium atom will be about 4 times longer than the wavelength of the hydrogen atom. B. the wavelength of the hydrogen atom will be about 4 times longer than the wavelength of the helium atom. C. the wavelength of the hydrogen atom will be about 2 times longer than the wavelength of the helium. D. the wavelength of the helium atom will be about 2 times longer than the wavelength of the hydrogen atom. E. the wavelength of the hydrogen atom will be roughly equal to the wavelength of the helium atom.
