Which contribution added to Rutherford's discovery of a positive nucleus?
Atoms are indivisible.
Electrons are scattered in an atom.
Neutrons are inside the nucleus of an atom.
Atoms of the same element have the same properties.
the answer is neutrons are inside the nucleus of an atom because when he did the gold foil experiment the light he cast on it deflected back to him because light does not pass through neutrons. (I think)
