After Dalton's proposed atomic theory, several atomic models were developed. Which model was the first propose the existence of small, dense nucleus?

Rutherford's model was the first propose of the existence of small, dense nucleus's.

Explanation: The atom, as described by Ernest Rutherford, has a tiny, massive core called the nucleus. The nucleus has a positive charge. Electrons are particles with a negative charge. Electrons orbit the nucleus. The empty space between the nucleus and the electrons takes up most of the volume of the atom.

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.