Question

Which of the 10 most common elements in the human body has the heaviest atoms? What are its main uses in the body?

Answer 1

Answer:

Nitrogen is about 3.3% of body mass. It's found in proteins and nucleic acids. Calcium accounts for 1.5% of body mass. It's used to build bones and teeth, plus it's important for muscle contraction.

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Elements in the Human Body.

Element Percent by Mass

Carbon 18

Hydrogen 10

Nitrogen 3

Calcium 1.5

Answer 2

ANSWER:

Almost 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium, sulfur, sodium, chlorine, and magnesium