What model describing atomic structure is often referred to as a planetary model?

What model describing atomic structure is often referred to as a planetary model?

• Correct Answer: Pascal model
• Newton's model
• kinetic model
• bohr model

Explanation: According to the Bohr model, often referred to as a planetary model , the electrons encircle the nucleus of the atom in specific allowable paths called orbits. When the electron is in one of these orbits, its energy is fixed. The ground state of the hydrogen atom, where its energy is lowest, is when the electron is in the orbit that is closest to the nucleus. The orbits that are further from the nucleus are all of successively greater energy. The electron is not allowed to occupy any of the spaces in between the orbits. An everyday analogy to the Bohr model is the rungs of a ladder. As you move up or down a ladder, you can only occupy specific rungs and cannot be in the spaces in between rungs. Moving up the ladder increases your potential energy, while moving down the ladder decreases your energy.

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