In the human body which element is most abundant by weight and by number respectively?
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hydrogen
The most abundant element by mass is oxygen. It accounts for nearly two-thirds of the mass of the human body. Carbon, hydrogen and nitrogenfollow oxygen in the same order. In terms of number of atoms, hydrogen is the most abundant.
hydrogen
The most abundant element by mass is oxygen. It accounts for nearly two-thirds of the mass of the human body. Carbon, hydrogen and nitrogenfollow oxygen in the same order. In terms of number of atoms, hydrogen is the most abundant.
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