What elements is it made of?

Answer 1

Atoms of elements are made up of protons, neutrons, and electrons. The number of protons is always the same for every atom of a given element. Thus, the number of electrons is also constant for a pure element (which is electrically neutral). However, the number of neutrons can vary; this variation leads to what are known as isotopes.

Answer 2

The human body is primarily made up of oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Additionally, smaller amounts of other elements such as potassium, sulfur, sodium, and magnesium are also present.