Question

matching: determine which scientist is associated with each of the following
theory stated that atoms have no charge and are made out of spheres of positive charges with negatively charged electrons embedded in them
believed electrons orbited the nucleus in definite paths
theory stated that matter is created from atoms which are small and indivisible, elements can combine and form compounds, and that all atoms of a given element are identical
discovered the nucleus of an atom and that an atom is mostly empty space using a gold foil experiment
found that electrons dont move around the nucleus in orbits, but exist in specific energy levels as a cloud

Explanation:

1. The "plum - pudding" model, stating atoms have no charge and are made of positive spheres with embedded negative electrons, is associated with J. J. Thomson.
2. The idea that electrons orbited the nucleus in definite paths was proposed by Niels Bohr.
3. The atomic theory stating matter is made of small, indivisible atoms, elements combine to form compounds, and all atoms of a given element are identical was put forward by John Dalton.
4. Ernest Rutherford discovered the nucleus and that an atom is mostly empty space through the gold - foil experiment.
5. The concept that electrons exist in specific energy levels as a cloud (quantum mechanical model) is related to Erwin Schrödinger and others in the development of quantum mechanics.

Answer:

1. J. J. Thomson
2. Niels Bohr
3. John Dalton
4. Ernest Rutherford
5. Erwin Schrödinger