SS Connection

I will make a historical connection with Niels Bohr. Bohr was a key developer of the atomic theory, which changed throughout history, and created his own atomic model. Niels Bohr created the Bohr model of the atom.

Niels Bohr, a Danish physicist, was born on October 7, 1885, in Copenhagen. He attended Copenhagen University and received his master's and doctorate in physics. He then traveled to Cambridge, England, and studied with J.J. Thomson in the Cavendish Laboratory while also pursuing his own theoretical studies. He later visited Ernest Rutherford in Manchester and decided that his model was not correct, for it was very unstable. Bohr worked it out and presented a picture of atomic structure that, with later improvements (mainly due to Heisenberg's ideas in 1925), still properly serves as an explanation of the physical and chemical properties of the elements. The picture went with the theory he proposed, which states that electrons jump between orbitals/energy levels. He also carried out a theoretical piece of work on the absorption of alpha rays which was published in the Philosophical Magazine, 1913. Bohr then passed on to a study of the structure of atoms on the basis of Rutherford's discovery of the atomic nucleus. Electrons attain an orbital of higher energy when they absorb energy and jump down to an orbital of lower energy when they release it. In 1922, he received a Nobel Prize in Physics for his work on atomic structures. Bohr also contributed to the clarification of the problems found in quantum physics, particularly by developing the concept of complementarity. He could show how intensely the changes in the field of physics have affected basic features of our scientific outlook and how the consequences of this change of attitude surpass the scope of atomic physics and involve all areas of human knowledge. He expressed his views in several essays, which are collected in two volumes with the title Atomic Physics and Human Knowledge and Essays 1958-1962 on Atomic Physics and Human Knowledge, during the years 1933-1962. Bohr later died on November 18, 1962 in Copenhagen.

Citations:

"Niels Bohr: Biography & Atomic Theory." livescience. Purch, 14 May, 2013. Web. 17 Nov. 2014.

"Niels Bohr Biography." Bio. A&E Television Networks, LLC, n.d. Web. 17 Nov. 2014.