Question

Which of the following is NOT true regarding Rutherford's Gold Foil experiment?

- It effectively disproved the Plum Pudding Model because most of the radiation went through.
- It confirms the existence of a dense nucleus and a mostly empty atom.
- The area around the nucleus must be of low mass.
- The scattering of the beta particles confirmed that the nucleus was positively charged.

Answer 1

The area around the nucleus must be of low mass.

Step-by-step explanation:

Rutherford`s experiment showed that there are some positive charges in the center of the atoms, and because they are all together, they will give a great mass to the atom.

It was quite different from Thomson`s experiment, in which it was thought that the negative charges were mixed with the positive charges, around the atom (like a Pudding Model). In Rutherford`s experiment, because the direction of beta particles, it was the prediction of the positive nucleus.

Hope this info is useful.