Question

The charged particles in the beams that Thomson studied came from atoms. As these particles moved away from their original atoms, they formed a visible beam. The current model of the atom includes protons, neutrons, and electrons.

Answer 1

The current model of atom that includes protons, neutrons, and electrons is the model of Bohr. In his atomic model, the proton and neutrons are inside the nucleus and that the electrons orbit around the dense nucleus forming a visible beam.

Answer 2

The question to the above information is;

What is the best use of an atomic model to explain the charge of the particles in Thomson's beams?

Answer;

An atom's smaller negative particles are at a distance from the central positive particles, so the negative particles are easier to remove.

Explanation;

-Atoms are comprised of a nucleus consisting of protons (red) and neutrons (blue). The number of orbiting electrons is the same as the number of protons and is termed the "atomic number" of the element.

J.J. Thomson discovered the electron. Atoms are neutral overall, therefore in Thomson’s ‘plum pudding model’:

• atoms are spheres of positive charge
• electrons are dotted around inside