What is Bohr’s Model of an Atom?
Bohr’s Model of an Atom explains that in an atom all the electrons revolve around the positively charged center called the Nucleus. According to this model, the electron revolving near the nucleus has less energy whereas the electron revolving away from the nucleus has higher energy.
This model proposes that the maximum number of electrons that can be accommodated in any particular orbit is 2n2 where n is the number of orbits. and the maximum number of electrons that can be accommodated in the outermost shell of an atom is 8.
Also, the orbit which is closest to the nucleus has the minimum energy, and the orbit farthest from the nucleus has the maximum energy. Electrons are excited to higher energy levels by absorbing energy and returns to lower energy level by radiating energy.
The energy radiated by the electron while jumping from a higher atomic orbital to a lower atomic orbital is shown in the image below.
Bohr’s Model of an Atom
Bohr’s Model is an atomic model proposed by Danish Physicist Niels Bohr in 1913. According to this model, in an atom, the electrons revolve around the nucleus in definite energy levels called orbits/shells. This model provides a basic understanding of the concept of the atom and its constituents.
Let’s learn more about Bhor’s Atomic Model, its limitations, and others in detail in this article.