Question

Which contribution added to Rutherford's discovery of a positive nucleus?

A: Electrons are scattered in an atom.


B: Neutrons are inside the nucleus of an atom.


C: Atoms of the same element have the same properties.

D: Atoms are indivisible.

Answer 1

A: Electrons are scattered in an atom.

Step-by-step explanation:

Ernest Rutherford performed the gold foil experiment which gave a deeper perspective into what an atom really is. In his experiment, he bombarded a thin gold foil with an alpha particle source.

From the behavior of the alpha particles that associated with the gold foil, a number of conclusions were drawn:

1. He suggested that an atom has a small positively charged nucleus where the bulk of the atomic mass is concentrated.
2. Surrounding the nucleus is a large space which contains the electrons.