Question

What is Bohr’s orbit?

Answer 1

Electrons in the Bohr model of the atom travel in circular orbits around the nucleus. An integer, the quantum number n, is used to designate the orbits. By generating or absorbing energy, electrons can leap from one orbit to the next.

Complete answer:
First of all, let us know about the bohr model which is also known as the Rutherford–Bohr model, is an atomic physics model that consists of a small, dense nucleus surrounded by orbiting electrons, similar to the structure of the Solar System, but with attraction provided by electrostatic forces instead of gravity. It was proposed by Niels Bohr and Ernest Rutherford in 1913. In comparison to the valence shell atom model, the Bohr model is a more rudimentary representation of the hydrogen atom. It may be determined as a first-order approximation of the hydrogen atom using the broader and far more precise quantum mechanics, and hence may be regarded as an obsolete scientific theory. Bohr defined the electron orbit's angular momentum as $\dfrac{1}{2}h$, whereas de Broglie defined wavelength as h divided by the electron momentum. Bohr, on the other hand, supported his rule in 1913 by citing the correspondence principle rather than presenting any form of wave explanation. The wave behavior of matter particles like the electron was unknown in 1913. Bohr was accurate in proposing that the energy and radii of electron orbits in atoms are quantized, with energy for transitions between orbits given by $E =$ $\vartriangle$ $hf$ = ${E_i} - {E_f}$, where E is the energy change between the starting and final orbits and $h_f$ is the energy of an absorbed or emitted photon.

Note:
According to the Bohr model, electrons in atoms are in different energy orbits around the nucleus (think of planets orbiting around the sun). Bohr used the term "energy levels" to describe these orbits of varying energy (or shells). The level of energy that normally occupies an electron is referred to as its ground state.