Question

Which observation led Rutherford to conclude that nearly all mass of an atom is concentrated within the nucleus?​

Answer 1

Answer:

Conclusion of Rutherford's scattering experiment:

• Most of the space inside the atom is empty because most of the α-particles passed through the gold foil without getting deflected.
• Very few particles were deflected from their path, indicating that the positive charge of the atom occupies very little space.
• A very small fraction of α-particles were deflected by very large angles, indicating that all the positive charge and mass of the gold atom were concentrated in a very small volume within the atom.