Question

In 1911, Hans Geiger and Ernest Marsden conducted an experiment to study the structure of an atom. What was the main observation made by Geiger and Marsden in their experiment?

1) The atom is mostly empty space.
2) The atom contains a dense nucleus.
3) The electrons are evenly distributed throughout the atom.
4) The protons and neutrons are located in the electron cloud.

Answer 1

Geiger and Marsden observed that the atom contains a dense nucleus.

Step-by-step explanation:

The main observation made by Geiger and Marsden in their experiment was that the atom contains a dense nucleus.