Plz ! 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 B.) Electrons are scattered in the atom

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)

The proton has a positive charge while the neutron has no charge they both make up the nucleus of the atom while the elections have a negative charge and surround the nucleus of the atom. the protons and electrons are used to calculate the atom's mass whereas the neutrons don't affect the mass