Question

The model of an atom is consistently undergoing changes. The changes are based on new information being found. Which model had the protons and the neutrons of the atom in the middle with the electrons orbiting around them with the ability to jump energy levels-otherwise described as the planetary model?"

(a) Bohr model
(b) Dalton model
(c) Rutherford model
(d) Thomson model

Answer 1

The Bohr model is the atomic model that has protons and neutrons in the nucleus with electrons orbiting around in energy levels, where they can jump between levels by absorbing or emitting energy.

Step-by-step explanation:

The model depicting the atom with protons and neutrons in the middle, and electrons orbiting around them, with the ability for electrons to jump energy levels is the Bohr model.

Developed by Niels Bohr in 1913, this model created a structured view of the atom's central nucleus containing both protons and neutrons, with electrons moving in fixed orbitals or shells.

These electron shells or energy levels allow us to visualize the electrons in the outermost parts of the atom, and are designated by a principal quantum number and the symbol "n."

The Bohr model is considered semi-classical as it merges classical mechanics with the newer quantum mechanics principles.

Rutherford's planetary model of the atom laid the groundwork for this structure, but it was Bohr's insights that introduced quantization of the electron's energy levels, further explaining the stability of atoms and how electrons emit or absorb energy.