What is the structure, size, loaction and function of the nucleus?

Question

What is the structure, size, loaction and function of the nucleus?

Answer 1

The nucleus of an atom is the very small dense region of an atom, in its center consisting of nucleons (protons and neutrons). The size (diameter) of the nucleus is in the range of 1.6 fm (10-15 m) (for a proton in light hydrogen) to about 15 fm (for the heaviest atoms, such as uranium).

Almost all of the mass in an atom is made up from the protons and neutrons in the nucleus with a very small contribution from the orbiting electrons.

Wikipedia

Using the energy in which reactions combine

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