~~Niels+Bohr~~

= Niels Bohr =

7 October 1885 – 18 November 1962 Denmark is the place he called home Discovery Year: 1913

[] Niels Bohr was born in Denmark in a rather high class family. originally he studied physiology and mathematics, but wised up and after he won an essay contest in physics. After receiving his doctorate in the subject in 1911, he did some early experiments under JJ Thomson, and following that went to work for Earnest Rutherford.

Bohrs Work! Bohr's model is an expansion on Rutherford's. While rutherford simply stated the electron circled a super dense nucleus, Bohr figured out that there are a series of layers or "orbits" in each atom where a set number of electrons can fit rather then just haphazardly spinning around. The atoms physical and chemical properties are then defined by the configuration of the electrons in its electron cloud, the outer shell, or valence shell, being the most influential because it is the one that dictates the reactivity of the atom.

Rutherford's and Bohr's models are routinely grouped together, and referred to as the Rutherford-Bohr model [] []