Bohr's Model and the Modern Atomic Theory

What was Bohr’s model of the atom?

described electrons as following fixed circular orbits around the nucleus due to centripetal force from the attraction between electrons and protons.

What is the modern atomic theory?

states that electrons are localized in regions called orbitals, forming a "cloud of electrons" around the nucleus.

What are orbitals in the modern atomic theory?

are regions around the nucleus where electrons are most likely to be found.

What does the Heisenberg Uncertainty Principle state?

It is impossible to simultaneously determine both the momentum and the exact location of an electron.

How does the modern atomic theory differ from Bohr’s model?

Unlike Bohr’s model, which describes fixed orbits, the modern theory describes electrons as existing in orbitals, with no defined pathway.