Question

8 what is a proton?

Explanation:

A proton is a subatomic particle. It is positively charged. It is found in the nucleus of an atom. Along with neutrons, protons contribute to the mass of the atom. The number of protons in an atom's nucleus determines the element it is (atomic number).

Answer:

A proton is a positively - charged subatomic particle located in the nucleus of an atom, which helps define the element (by atomic number) and contributes to the atom's mass.