Niels Henrik David Bohr was born in Copenhagen, Denmark on 7 October 1885 and lived till 18 November 1962.
He was a Danish Physicist, a Philosopher and a promoter of Scientific research.
Bohr completed his schooling from Gammelholm Latin School.
Bohr was graduated in the field of Physics, Astronomy and Mathematics from Copenhagen University in 1903.
Bohr completed his Masters in Mathematics in April 1909.
He made foundational contributions to understanding atomic structure and quantum theory.
He received the Nobel Prize in Physics in 1922.
Bohr's Contribution in Physics
Bohr found the Institute of Theoretical Physics at the University of Copenhagen which is now known as the Niels Bohr Institute which opened in 1920.
Bohr mentored and collaborated with physicists including Hans Kramers, Oskar Klein, George de Hevesy, and Werner Heisenberg.
He predicted the existence of a new zirconium-like element, which was named hafnium.
Later, the element bohrium was named after him.
Bohr's Atomic Models
Bohr developed the Bohr model of the atom, in which he proposed that energy levels of electrons are discrete.
He also proposed that the electrons revolve in stable orbits around the atomic nucleus but can jump from one energy level (or orbit) to another.
An atom consists of orbitals (or shells) that are have a set energy level and size and these orbitals are what electrons travel on.
The energy level of an orbital is proportional to the size of the orbital. It means that a higher energy orbital will be bigger than a lower energy orbital).
When an electron jumps between orbitals, it’s energy level will change to the orbits energy level.
