If a hydrogen (H) atom and a helium (He) atom travel at the same speed, which of the following is true about the de Broglie wavelengths of the atoms? A) The H atom is about 2 times longer than the He atom. B) The H atom is approximately the same as the He atom. C) The H atom is about 4 times longer than the He atom. D) The He atom is about 2 times longer than the H atom. E) The He atom is about 4 times longer than the H atom.

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If a hydrogen (H) atom and a helium (He) atom travel at the same speed, which of the following is true about the de Broglie wavelengths of the atoms?
A) The H atom is about 2 times longer than the He atom.
B) The H atom is approximately the same as the He atom.
C) The H atom is about 4 times longer than the He atom.
D) The He atom is about 2 times longer than the H atom.
E) The He atom is about 4 times longer than the H atom.
 
 
 
 
 
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