It states that matter is composed of discrete units called atoms, as opposed to the obsolete notion that matter could be divided into any arbitrarily small quantity.

He discovered the negatively charged components inside the atom through his experiments on cathode ray tubes.

Region around the nucleus where electrons orbit.

He proposed the planetary model.

Materials that allow electrons to flow freely from atom to atom.

Negatively charged subatomic particle orbiting the nucleus.

Materials that prevent the free flow of electrons from atom to atom.

Who proposed that the atom is mostly empty space, with electrons orbiting the nucleus.

Three-dimensional regions where electrons are most likely to be found in an atom.

What do you call to the experiment of Ernest Rutherford?

Positively charged center of the atom containing protons and neutrons.

What is the description of John Dalton's atomic model?

When you place north and south ends of the two magnets next to each other, what will happen?