Question

select the correct answer. what did rutherfords gold - foil experiment help him conclude? a. the mass of the atom is equivalent to the number of protons alone. b. the mass of the atom is negligible. c. the mass of the atom is mostly located in a small nucleus. d. the mass of the atom is equivalent to the number of neutrons alone.

Explanation:

Rutherford's gold - foil experiment showed that most of the mass of an atom is concentrated in a small, dense nucleus. Electrons have negligible mass compared to protons and neutrons, and the mass of an atom is mainly due to the protons and neutrons in the nucleus.

Answer:

C. The mass of the atom is mostly located in a small nucleus.