Final answer:
The model of the atom used in modern atomic theory is a conceptual model based on experimental evidence.
Step-by-step explanation:
The model of the atom used in modern atomic theory is a conceptual model. It was developed based on information gathered through several experiments on matter. This model, known as the quantum mechanical model or the electron cloud model, describes the atom as a nucleus containing protons and neutrons, surrounded by an electron cloud in which electrons are found in different energy levels or orbitals.
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